How are hydrocarbons harmful to wildlife and people?
Answers
Hydrocarbons can be harmful to both wildlife and people due to their toxic nature and the production of harmful byproducts.
In the case of wildlife, exposure to hydrocarbons, especially in the form of oil spills or leaks, can have devastating effects. The toxic components of hydrocarbons can contaminate habitats, water bodies, and food sources for wildlife. Aquatic organisms, such as fish, marine mammals, and birds, can suffer from direct contact with oil, leading to physical harm, such as damage to their feathers or fur, hindering their ability to swim or fly. Ingestion of hydrocarbons through contaminated food sources can also lead to internal injuries, organ damage, and disruption of physiological processes.
For people, exposure to hydrocarbons can occur through various routes, including inhalation of volatile organic compounds (VOCs) present in hydrocarbon emissions or contact with contaminated soil, water, or food. Hydrocarbons can have acute or chronic health effects, depending on the level and duration of exposure. Acute exposure to high levels of hydrocarbons can cause respiratory irritation, dizziness, headaches, nausea, and in severe cases, neurological and organ damage. Long-term exposure to hydrocarbons has been associated with respiratory problems, increased cancer risk, and adverse effects on the central nervous system, liver, and kidneys.
Overall, hydrocarbons pose risks to both wildlife and human health due to their toxicity and potential for environmental contamination. Proper management, prevention of spills, and adoption of cleaner energy sources are crucial in mitigating these harmful impacts.
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Related Questions
What is the product of the unbalanced combustion reaction below?
CH₂(g) + O₂(g) →
A. C(s) + H₂(g) + O₂(g)
B. CH₂0(s)
C. C(s) + H₂O(g)
D. CO₂(g) + H₂O(g)
Answers
Explanation:
A is the answers for the question
The product formed in the combustion reaction is generally the oxidized fuel. The combustion reactions are exothermic. The products of the given reaction are CO₂ and H₂O. The correct option is D.
What is combustion?A chemical reaction in which the fuel undergoes oxidation by reacting with a powerful oxidizing agent which results in the release of energy generally in the form of heat is defined as the combustion. All combustion reaction will not results in fires.
The combustion of LPG fuel which is used for cooking food involves the combustion reaction between the oxygen present in the atmosphere and the liquified petroleum gas. The explosion of fire works also indicates the combustion reaction.
The given reaction is given as:
CH₂(g) + O₂(g) → CO₂(g) + H₂O(g)
The substances on the right-hand side are called the products.
Thus the correct option is D.
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What is the optimum pH of formic acid-formate buffer? (The pK, of formic acid is 3.75.)
1.875
3.75
5.625
7.50
Answers
The optimum pH of formic acid - formate buffer is 3.75
What is Buffer ?
A substance or a solution which resists any changes in pH, when acid or alkali is added to it.
pH = pKa + log[base] / [acid]
Considering equimolar concentration of acid and base
pH = 3.75 + log(x)/(x)
pH = 3.75 + log (1)
pH = 3.75 + 0
pH = 3.75
Hence,
The optimum pH of formic acid - formate buffer is 3.75
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a 100.0 ml solution of naoh reaches the equivalence point when 30.22 ml of a 0.0750 m solution of hcl is added from the burette.
Answers
The answer is 0.0026.
Solution:
(V₁) Volume of NaOH = 100 mL
(V₂) Volume of HCl = 30.22 mL
(M₂) molarity of HC = 0.0750 m
(m₁) molarity of NaOH =
By using relation
M₁V₁ = M₂V₂
M₁ = M₂ V₂/V₁
M₁ = 0.0750ML*30.22mL/100 mL
M₁ = 0.0226
Now
molarity of NaOH = mole of NaOH/Volume of NaOH (in L)
mole of NaOH = molarity x volume
= 0.0226 mol/L X 100 X 10⁻³ L
= 0.0026 mol So the mole of NaOH is 0.0026.
When titrating NaOH with HCl using methyl orange as an indicator the endpoint color changes from yellow to red, so add HCl to the burette. This is just for ease of calculation. Put the hydrochloric acid in the burette and the soda solution in the Erlenmeyer flask. Methyl orange is used as an indicator.
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What belief has the scientist in The Daily Times article developed as a result of experimentation?
1. He believes that if deafness is caused by a defective gene, gene therapy has the potential to cure many forms of hearing loss.
2. He believes that deafness is not hereditary, therefore there is no gene treatment that applies.
3. He believes that the scientists that conducted the study do not have the credentials to validate the results.
4. He believes that the tests are not valid and the results are not true.
Answers
The belief that scientists in The Daily Times article developed as a result of experimentation is he believes that if deafness is caused by a defective gene, gene therapy has the potential to cure many forms of hearing loss. The correct option is 1.
What is gene therapy?Gene therapy is a process in which the defective gene is repaired by scientific methods. Gene therapy is a form of genetic engineering. It is an attempt to cure diseases. It involves replacing a mutated gene.
Therefore, the correct option is 1. He believes that if deafness is caused by a defective gene, gene therapy has the potential to cure many forms of hearing loss.
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find the relative atomic mass
Answers
Answer:
atomic mass = 16 amu
Explanation:
The atomic mass is the total protons and neutrons in an element. The atomic number represents the total number of protons.
In this form, the superscript (raised exponent) represents the mass number/atomic mass. The subscript represents the atomic number. Therefore, if the number (16) is the superscript, this must be your answer.
¹⁶₈Z
-----> 16 = mass number/ atomic mass
-----> 8 = atomic number
If you wanted to mix pure methane with water and end up with 90 gallons of 60% methane, how many gallons of each should you use?
You should use ________ gallons of water and _________ gallons of methane
Answers
To determine the amount of water and methane needed, we can set up a system of equations based on the desired composition of the mixture. you should use 36 gallons of water and 54 gallons of methane to obtain a mixture of 90 gallons with a methane concentration of 60%.
Let's assume x represents the number of gallons of water and y represents the number of gallons of methane. We have the following information: The total volume of the mixture is 90 gallons: x + y = 90. The mixture should be 60% methane: (y / (x + y)) * 100 = 60. Simplifying the second equation: y / (x + y) = 0.6. Now we can solve the system of equations: From equation 1, we can express x in terms of y: x = 90 - y. Substituting this into equation 2: y / ((90 - y) + y) = 0.6. Simplifying further: y / 90 = 0.6. Solving for y: y = 0.6 * 90. y = 54. Now we can find x using equation 1: x = 90 - y. x = 90 - 54. x = 36. Therefore, you should use 36 gallons of water and 54 gallons of methane to obtain a mixture of 90 gallons with a methane concentration of 60%.
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At ambient conditions, suppose that you have 1.0 moles of Deuterium D2 (a variation of Hydrogen H₂ which contains neutrons). Consider two scenarios for it:
All of it combusts with Oxygen O2, in turn yielding Water H2O.
b. All of it fuses in pairs, in turn yielding Helium He.
In each scenario, how many grams are destroyed and how many Joules are created? Thus in general, how do you compare chemical and nuclear reactions? For these calculations,
NIST data for isotope weights and for formation heats will be useful!
Answers
The difference between chemical reactions and nuclear reactions is the magnitude of energy released and the amount of substance involved whereby nuclear reactions involve much larger energy releases compared to chemical reactions.
How can we compare the chemical and nuclear reactions?To compare the chemical and nuclear reactions, we need to calculate the amount of substance destroyed and the energy released in each scenario.
Scenario a: Combustion of Deuterium D2 with Oxygen O2 to form Water H2O.
1 mole of Deuterium D2 reacts with 1 mole of Oxygen O2 to form 1 mole of Water H2O.
Using the molar masses:
Molar mass of D2 = 2.014 g/mol
Molar mass of O2 = 31.998 g/mol
Molar mass of H2O = 18.015 g/mol
Number of grams destroyed:
Grams of D2 destroyed = 1.0 moles * 2.014 g/mol = 2.014 g
Grams of O2 destroyed = 1.0 moles * 31.998 g/mol = 31.998 g
Energy created:
Formation heat of D2 = -9.99 kJ/mol
Formation heat of O2 = 0 kJ/mol
Formation heat of H2O = -285.83 kJ/mol
Energy released = (1.0 moles * -9.99 kJ/mol) + (1.0 moles * 0 kJ/mol) - (1.0 moles * -285.83 kJ/mol)
Scenario b: Fusion of Deuterium D2 to form Helium He.
1 mole of Deuterium D2 fuses to form 0.5 moles of Helium He.
Number of grams destroyed:
Grams of D2 destroyed = 1.0 moles * 2.014 g/mol = 2.014 g
Energy created; E = mc²
The mass defect of D2 to form He is approximately 0.0189 amu (atomic mass units).
Using the conversion factor: 1 amu = 1.661 x 10⁻²⁷ kg
Mass defect = 0.0189 amu * 1.661 x 10⁻²⁷ kg/amu = 3.137 x 10⁻²⁹ kg
Speed of light, c = 3.0 x 10⁸ m/s
Energy released = (3.137 x 10^-29 kg) * (3.0 x 10^8 m/s)₂
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a. In the combustion scenario, when 1.0 mole of Deuterium (D2) reacts with Oxygen (O2) to form Water (H2O), 2.02 grams of Deuterium and 36.03 grams of Water are produced. The amount of heat released is -571.66 kJ/mol.
b. In the fusion scenario, when 1.0 mole of Deuterium (D) fuses in pairs to form Helium (He-3), 4.028204 grams of Deuterium and 1.508015 grams of Helium (He-3) are produced. The amount of energy released is 3.27 MeV.
To compare chemical and nuclear reactions, one needs to consider the energy released and the mass involved.
For the combustion scenario, the balanced chemical reaction is given by:
D2 + O2 → 2H2O
Given that the amount of Deuterium (D2) is 1.0 mole, we can calculate the mass of D2 using the isotope weight data from NIST:
Mass of D2 = 1.0 × 2.02 g/mol = 2.02 g
The balanced reaction shows that 2 moles of Water (H2O) are produced. Using the molar mass of water (18.01528 g/mol), we can calculate the mass of water produced:
Mass of Water produced = 2 × 18.01528 g/mol = 36.03 g
The heat released for the formation of 2 moles of Water (H2O) is given as -285.83 kJ/mol. Therefore, the total amount of heat released is:
Heat released = -2 × 285.83 kJ/mol = -571.66 kJ/mol
In the fusion scenario, the balanced nuclear reaction for the fusion of Deuterium (D) is given by:
D + D → He-3 + γ + n
Since 1.0 mole of Deuterium (D2) is involved, the reaction takes place in pairs. Therefore, the number of reactions is 1/2.
The mass of Deuterium (D) is 2.014102 g/mol. Therefore, the mass of D2 is:
Mass of D2 = 2.014102 × 2 = 4.028204 g
The mass of Helium (He-3) is 3.016029 g/mol. Thus, the mass of Helium (He-3) produced is:
Mass of He-3 produced = 0.5 × 3.016029 = 1.508015 g
The energy released in this fusion reaction is given as 3.27 MeV.
To compare chemical and nuclear reactions, one needs to consider the energy released and the mass involved. Nuclear reactions generally release much higher amounts of energy compared to chemical reactions due to the formation of strong nuclear bonds. Additionally, the mass of the reactants involved in nuclear reactions is typically more significant than in chemical reactions.
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What do these two changes have in common?
shaking up salad dressing
adding dish soap to water in a sink
Select all that apply.
Both are only physical changes.
Both are caused by heating.
Both are chemical changes.
Both are caused by cooling.
Answers
According to the given statement these two changes have in common in Both are only chemical changes.
The correct option is C.
What changes do chemicals make?Chemical changes happen when bonds among atoms or molecules are formed, broken, or both. This suggests that a substance is transformed from one with a particular set of characteristics (such melting point, color, flavor, etc.) into one with a different set of characteristics.
What function does chemical change ?The majority of our energy is produced by chemical reactions. Many different types of materials are tested, identified, and analyzed using chemical reactions (such as pool testing kits and forensic tests from TV shows like "CSI").
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what is the stoichiometry for the cobalt (iil) glycinate complex? explain the thinking behind having the conoentration of glycinate be more than 4 times greater than the concentration of cobalt ion
Answers
Glycinate donates an electron pair so it is a bidentate ligand.
The molecular formula is C₂H₄NO₂⁻. The octahedral complex is formed between glycinate molecules and cobalt(III) and the stoichiometry of the complex is [Co(gly)₃]. The reaction is as follows;
Co₃⁺(aq) + 3C₂H₄NO₂⁻ ⇒ [Co(C₂H₄NO₂⁻](aq)
A cobalt complex is formed when 3 glycinate ions equivalents react with one Co₃⁺ ion equivalent so, it is necessary to keep the glycinate ions concentration greater than the cobalt(III) ions at least three times more.
So, taking the concentration 4 times greater can facilitate the reaction.
For a complex whose concentration is 0.015M, 0.06M glycinate ions are required to obtain the desired cobalt(III) glycinate complex.
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7. when silver nitrate and sodium sulfate react, a precipitate forms. what mass of the precipitate is obtained when 100. ml of 0.100 m sodium sulfate is added to 150. ml of 0.100 m silver nitrate? if 1.50 g of the precipitate was isolated. what is the percent yield?
Answers
The mass of the precipitate that is obtained when 100. ml of 0.100 m sodium sulfate is added to 150. ml of 0.100 m silver nitrate is 4.97g. The percentage yield is 30.1%.
When silver nitrate and sodium sulfate are mixed together, a white precipitate forms. To determine the mass of the precipitate that is obtained when 100. ml of 0.100 m sodium sulfate is added to 150. ml of 0.100 m silver nitrate, we need to use the following equation:
M = n/V
Where M is the molarity, n is the number of moles, and V is the volume in liters.
To calculate n, we use the following equation:
n = M x V
Where M is the molarity and V is the volume in liters.
For our situation, we have:
M = 0.100 m (sodium sulfate)
V = 0.150 L (silver nitrate)
Therefore, n = 0.100 m x 0.150 L = 0.015 mol
To calculate the mass of the precipitate, we use the following equation:
Mass = n x M
Where n is the number of moles and M is the molar mass of the precipitate.
For our situation, we have:
n = 0.015 mol
M = 331.51 g/mol (Ag2SO4)
Therefore, Mass = 0.015 mol x 331.51 g/mol = 4.97 g
If 1.50 g of the precipitate was isolated, then the percent yield would be calculated using the following equation:
Percent Yield = (Actual Yield / Theoretical Yield) x 100
Where Actual Yield is the mass of the precipitate that was isolated and Theoretical Yield is the mass of the precipitate that was calculated.
For our situation, we have:
Actual Yield = 1.50 g
Theoretical Yield = 4.97 g
Therefore, Percent Yield = (1.50 g / 4.97 g) x 100 = 30.1%
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(This is rly for science but there’s no category for that) Which statement best describes how scientists and engineers work together
in the research and development cycle?
O A. Engineers come up with scientific questions when they are
developing their design, and scientists do research to answer
them.
O B. Scientists test designs made by engineers and then use the
results to improve the designs.
C. Scientists develop a new technology, and then engineers test it by
doing experiments.
D. Engineers make a scientific discovery, and then scientists perform
research to verify it.
Answers
Answer:
A. Engineers come up with scientific questions when they are developing their design, and scientists do research to answer them.
pyo- (py/o/rrhea; pyo/genic) means:
Answers
The term "pyo-" (py/o/rrhea; pyo/genic) means "pus" or "related to pus."
What is the term "pyo-" (py/o/rrhea; pyo/genic)?The prefix "pyo-" is derived from the Greek word "pyon," which means pus. When used as a prefix in medical terminology, "pyo-" indicates a condition or process related to pus or the presence of pus.
For example, "pyorrhea" refers to a condition characterized by the discharge of pus from a wound or an infection of the gums. In this case, the term combines "pyo-" (meaning pus) and "-rrhea" (meaning discharge or flow).
Similarly, "pyogenic" refers to something that causes or is related to the production of pus. It is often used to describe bacteria or microorganisms that can lead to the formation of pus in infected tissues.
In summary, the prefix "pyo-" in medical terminology denotes pus or the involvement of pus in a specific condition, indicating a discharge, infection, or pus-forming process.
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which of the following would have a higher rate of effusion than c2h2?
group of answer choices
n2
o2
cl2
ch4
co2
Answers
The gas that would have a higher rate of effusion than C2H2 (acetylene) is N2 (nitrogen gas).
Effusion refers to the process by which gas molecules escape through a small opening or a porous barrier. According to Graham's Law of Effusion, the rate of effusion of a gas is inversely proportional to the square root of its molar mass. This means that gases with lower molar masses will have higher rates of effusion.
Comparing the molar masses of the given gases:
N2: 28 g/mol
O2: 32 g/mol
Cl2: 71 g/mol
CH4: 16 g/mol
CO2: 44 g/mol
Among these gases, N2 has the lowest molar mass of 28 g/mol. Therefore, according to Graham's Law of Effusion, N2 would have a higher rate of effusion compared to C2H2.
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Type the correct answer in each box. express your answer to two significant figures. you form water vapor by mixing oxygen and hydrogen at 730°c in a 5.4-liter container. this is the equation for the reaction: o2(g) 2h2(g) → 2h2o(g). the partial pressure of oxygen before the reaction is 122.3 kilopascals, and there is excess hydrogen. how many moles of water are formed? the reaction produces moles of water.
Answers
The number of moles of water vapor formed in the reaction is 0.158 moles
What is the ideal gas equation?The ideal gas equation shows the relationship between number of moles, temperature, volume and pressure.
Now;
P = 122.3 kilopascals or 1.21 atm
V = 5.4 L
T = 730°c or 1003 K
n = ?
R = 0.082 atmLK-1mol-1
PV = nRT
n = PV/RT
n = 1.21 * 5.4/0.082 * 1003
n = 6.53/82.2
n = 0.079 moles
The equation of the reaction is; O2 (g) + 2H2(g) ---->2H2O(g)
If 1 mole of O2 formed 2 moles of H2O
0.079 moles of O2 yield x moles of H2O
x = 0.079 * 2/1
= 0.158 moles
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Convert the following:
1.
25.4 centimeters________ ??
millimeters
2.
53 millimeters ________ ??centimeters
Answers
53 mm = 5.3 cm
Answer:
1. 254 milli
2. 5.3 centi
Explanation:
254 milli = 25.4 centi
53 milli = 5.3 centi
What volume of 6. 0 m hno3 would be needed to make 500 ml of 0. 50 m solution?.
Answers
Answer:
¹/₂₄ dm³ or 0.417 dm³
Explanation:
6.0 M = 6.0 mol/dm³
0.5 M = 0.5 mol/dm³
500 ml = 0.5 dm³
V = volume of 6.0 M solution required (dm³)
Volume × concentration = moles:
0.5 × 0.5 = 0.25
500 ml or 0.5 dm³ of 0.5 M solution contains 0.25 moles of HNO₃
We have 6.0 M solution available, we need 0.25 moles;
Using the formula, we can find the volume of the solution that contains this amount of moles:
6.0 × V = 0.25
V = 0.25/6
V = ¹/₄(¹/₆)
V = ¹/₂₄
¹/₂₄ dm³ of the 6.0 M solution has the necessary moles of HNO₃ to achieve the desired volume of solution at the desired concentration;
Another liquid (or solution), such as water, without any HNO₃ must be used to make up the total 500 ml or 0.5 dm³, diluting the HNO₃ to the desired concentration:
0.5 - ¹/₂₄ = ¹²/₂₄ - ¹/₂₄
= ¹¹/₂₄
¹/₂₄ dm³ of the 6.0 M solution should be diluted with the ¹¹/₂₄ dm³ of liquid (0 M HNO₃ solution) to produce 0.5 dm³ of 0.5 M solution
What is the density of an object that has a mass of 350 g and a volume of 95 cm?? Would
this object float in water?
Answers
Answer:
Density= 3.68g/cm³
The object will sink in water
Explanation:
D=m/v
=350/95
=3.684
≈3.68g/cm³
Water= 1g/cm³
The object will sink in water because the object is denser than the water.
3.684g/cm³ is the density of an object that has a mass of 350 g and a volume of 95 cm³. The object will sink in water.
What is density?The density of a material (volumetric density and specific mass) is its mass per unit volume. The most common sign for density is however the Roman letter D can be used as well. Density is defined mathematically as mass divided with volume.
The density of a pure material has the same numeric values just like its mass concentration. Various materials have varied densities, and density can be important in terms of buoyancy, purity, and packing.
D=m/v
=350/95
=3.684g/cm³
The object will sink in water
Therefore, 3.684g/cm³ is the density of an object that has a mass of 350 g and a volume of 95 cm³. The object will sink in water.
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hydrochloric acid reacts with many metals to form hydrogen gas and the corresponding metal chloride. if you needed to produce hydrogen gas as a source of fuel, and given a choice of na, mg, al, or zn as the metal, which one would you choose to maximize the amount of hydrogen gas produced per gram of metal?
Answers
Magnesium would be chosen to produce the hydrogen gas .
What is Chemical reaction ?
There are chemical reactions taking place all around us. Nothing could be further from the reality, despite the fact that we occasionally link chemical processes with the sterile surroundings of the test tube and the lab. A staggering, nearly incomprehensible variety of new substances and energy changes actually result from the enormous number of alterations that occur in our environment every second of every day.
Chemical reactions happen whether or not you want them to in nature, where they can be considerably less controlled than in a lab. They can also be more messier. Whether it be a forest fire that is blazing.
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When the sun shines directly on objects, white objects remain cooler than black objects. This difference in temperature is because more of the light striking white objects is–
Answers
Answer:
The amount of sun that is being reflected and how hot the sunlight being reflected is
Explanation:
c) The amount of water on Earth changes every day. true or false?
Answers
Answer:
I think it's False
Explanation:
Explanation:
The amount of water in, on, and above our planet does not increase or decrease because of the water cycle
So it's false
What were the similarities and differences between water and neon in the simulation? Explain.
Answers
Answer:
Explanation:
I'm sorry, but without more information about the specific simulation you are referring to, I am unable to provide a detailed answer. However, in general, water and neon are chemically and physically quite different. Water is a molecule made up of two hydrogen atoms and one oxygen atom (H2O) and is a liquid at room temperature. Neon, on the other hand, is a gas composed of neon atoms (Ne) and is a noble gas.
Water is polar molecule due to the difference in electronegativity of H and O atoms, it is essential for life on earth and is abundant in nature. Neon, being a noble gas, is chemically unreactive and does not form compounds. It is used mainly for lighting and in some industrial processes.
Both water and neon are transparent, but neon is much less dense than water. Also, the boiling point of neon is much lower than that of water.
In summary, water and neon are chemically and physically very different, with water being a polar liquid, essential for life and essential for many chemical reactions, and neon being a noble gas, chemically unreactive, mostly used for lighting and in some industrial processes.
Gina predicts that one really large cube of sugar will dissolve faster than the same
amount of sugar in several medium-sized cubes. She thinks that because there is only
one larger cube, it has more surface area and will dissolve faster than the several
medium-sized cubes. What is the best assessment of Gina's prediction?
Answers
The best assessment of Gina's prediction is that the several medium-sized cubes will dissolve faster than the large cube of sugar.
How does surface area affect solubility?The surface area of a substance refers to the total area on the surface of that object.
Surface area plays a vital role in the dissolution of a substance. When a solute dissolves, the action takes place only at the surface of each particle.
This suggests that when the total surface area of the solute particles is increased, the solute dissolves more rapidly, hence, the best assessment of Gina's prediction is that the several medium-sized cubes will dissolve faster.
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given the lewis structure of tef6 below, what are the bond angles in the molecule?
Answers
All the bond angles in the molecule are 90° since the molecule is octahedral.
Structure of molecules:The structure of a molecule is predicted on the basis of the valence shell electron pair repulsion theory. This theory establishes the fact that the number of electron pairs in a molecule determines the shape of the molecule.
Bond angles in TeF6The structure of TeF6 is shown in the image attached. We can see from the image that the molecule is octahedral. Therefore, all the bond angles in the molecule are 90°.
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Which is an example of variations in a population of organisms
Answers
Answer:
The gravitational potential energy it had from being above the ground is converted to kinetic energy as the rock falls. As kinetic energy increases, the velocity of the rock will also increase. However, if one considers the air, the rock will lose energy as it falls due to air resistance. If the cliff is high enough, the acceleration due to gravity and the air resistance due to the velocity will be exactly equal and there will be no change in kinetic energy.
Explanation:
hope this helps
Help me to answer this pls
Answers
Answer:
1. 2
2. 2
3. 1
4. 2
5. 3
6. The number of waves that pass a point in a second
7. How close the waves are to each other
Explanation:
also, check out this answer key if you need it:
https://rmsteam72.weebly.com/uploads/1/2/7/2/127288658/waves_worksheet_answer_key.pdf
stay safe out there.
“The mixture is green in color.” This confirms that the mixture is a.... A) suspension B) solution C) colloid D) this proves nothing
Answers
the chemical reaction through which a molecule of sucrose is broken down into its monomers (glucose and fructose) is an example of:
Answers
The chemical reaction through which a molecule of sucrose is broken down into its monomers (glucose and fructose) is an example of:
\(Sucrose + H_{2} O -- > glucose + fructose\)
What is chemical reaction?
In this equation, sucrose and water are the reactants, and glucose and fructose are the products. During the reaction, some of the bonds in sucrose and water are broken and new bonds are formed, resulting in products with chemical properties that are very different from those of the reactants.When molecules in a reactant undergo a chemical reaction, their bonds are broken, and molecules in the product undergo a similar process, new bonds are created, creating a new substance.We are surrounded by chemical processes on a daily basis, whether it be in our bodies as they process food or in the sun as they produce the light we see. Prior to starting with chemical reactions, it's crucial to understand physical and chemical changes.The finest illustration of a physical and chemical transformation is a burning candle. You should light a candle. The candle turns into wax as time goes on, as is evident. The candle will go out if it is covered with a jar.However, A chemical change occurs while the candle burns in the demonstration.
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please solve this question
Answers
Answer:
b) it gets accumulated in the respiratory system which then halts or slows down the supply of oxygen to the brain hence leading to death
A syringe contains 610 mL of CO at 310 K and 1.5 atm pressure. A second syringe contains 520 mL of N2 at 325 K and 3.5 atm. What is the final pressure if the contents of these two syringes are injected into 2.00 L container at 10.0C
Answers
Answer:
P = 1.21atm
Explanation:
Using PV = nRT, moles of both syringes is:
Moles CO:
n = PV / RT
n = 1.5atm*0.610L / 0.082atmL/molK*310K
n = 0.0360 moles
Moles N₂:
n = PV / RT
n = 3.5atm*0.520L / 0.082atmL/molK*325K
n = 0.0683 moles.
As in the container you mix both gases, moles in the container are:
n = 0.0360 + 0.0683 = 0.1043 moles
Conditions of the container are:
V = 2.00L; T = 273.15K + 10°C = 283.15K; n = 0.1043 moles.
Thus, pressure is:
P = nRT / V
P = 0.1043mol*0.082atmL/molK*283.15K / 2.00L
P = 1.21atmAn unknown object has a mass of 15 g and its volume is 9 cm^3. Calculate the density and determine if the item would sink or float in water.
Answers
Answer:
1.67 g/cm³Explanation:
The density of a substance can be found by using the formula
\(density = \frac{mass}{volume} \\\)
From the question we have
mass = 15 g
volume = 9 cm³
\(density = \frac{15}{9} = 1.67 \\ \)
We have the final answer as
1.67 g/cm³The object will sink in water since it has a density greater than that of water which is 1 g/cm³
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