CO2 is not a possible cause of acid deposition. Acid deposition, also known as acid rain, occurs when emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) react with the atmosphere and form sulfuric acid (H2SO4) and nitric acid (HNO3). These acids can then be deposited onto the earth's surface through precipitation such as rain, snow, and fog.
SO2 and NOx are primarily released by human activities such as burning fossil fuels, industrial processes, and transportation. However, CO2 is not a direct cause of acid deposition as it is not acidic in nature. Instead, CO2 is a greenhouse gas that contributes to climate change by trapping heat in the atmosphere.
It is important to reduce emissions of SO2 and NOx in order to prevent or reduce the effects of acid deposition on the environment, including damage to forests, water bodies, and wildlife. Efforts to reduce these emissions can include using cleaner energy sources, improving industrial processes, and implementing stricter regulations on transportation emissions.
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What is 25.3 X 12.65 before rounding?
Answer:
320.045
Explanation:
Where would you expect light waves to move fastest?
A. Through an iceberg
B. On a mountaintop
C. In space
D. Under the sea
In space light waves move fastest, which is C. This is due to the fact that space is completely open and unrestricted and contains nothing that would do so.
What is Light waves?
The region of the electromagnetic spectrum that the human eye perceives as light, or visible light, is made up of electromagnetic radiation. Typically, visible light is characterised as having wavelengths between 400 and 700 nanometers (nm), or frequencies between 750 and 420 terahertz, which fall between the longer-wavelength infrared and the shorter-wavelength ultraviolet (with shorter wavelengths). The term "light" in physics can be used to more broadly describe electromagnetic radiation of any wavelength, whether or not it is visible. Gamma rays, X-rays, microwaves, and radio waves are all forms of light in this sense. Intensity, propagation direction, frequency or wavelength spectrum, and polarisation are the four main characteristics of light.
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The half-life of cobalt-do is 5 years. If you have 10 grams of Co-60, how much do you have after 15 years
After 15 years, there would be approximately 1.25 grams of Co-60 remaining.
We need to figure out how many half-lives have transpired in order to compute the amount of Co-60 that is still there after 15 years.
Given that Co-60 has a half-life of 5 years, the number of half-lives that have passed can be determined by dividing the total duration by the half-life:
Half-life divided by total time equals the number of half-lives.
15 years divided by 5 years equals three half-lives.
The quantity of radioactive material is divided in half for each half-life, thus we can determine the remaining quantity as follows:
Initial Amount x (1/2) = Remaining Amountthe quantity (half-lives)
The remainder is equal to 10 grammes times (1/2)3 (10 grammes times (1/8) = 1.25 grammes).
Therefore, there would be roughly 1.25 grammes of Co-60 left after 15 years.
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One-half gram of solid calcium sulfate, CaSO_4 (s), is added to 1.0 L of pure water. Immediately, the solid begins to dissolve according to the following reaction: CaSO_4(s) reversible Ca^2+ + SO_4^2- What is the concentration of dissolved sulfate in the water once equilibrium is achieved
The solubility equilibrium for calcium sulfate is given by:
CaSO4(s) ⇌ Ca2+(aq) + SO42-(aq)
At equilibrium, the rate of dissolution of CaSO4(s) is equal to the rate of precipitation of CaSO4(s), and the concentrations of Ca2+(aq) and SO42-(aq) remain constant.
Let x be the concentration of SO42-(aq) at equilibrium. At the beginning of the reaction, before any dissolution has occurred, the concentration of SO42-(aq) is zero. As the solid dissolves, it produces Ca2+(aq) and SO42-(aq) ions in a 1:1 mole ratio. Therefore, at equilibrium, the concentration of Ca2+(aq) is also equal to x.
The solubility product expression for calcium sulfate is:
Ksp = [Ca2+][SO42-]
At equilibrium, we can substitute x for [Ca2+] and [SO42-] in this expression:
Ksp = x^2
The value of Ksp for calcium sulfate at 25°C is 4.93 × 10^-5. Therefore:
4.93 × 10^-5 = x^2
Taking the square root of both sides:
x = 7.02 × 10^-3 M
Therefore, the concentration of dissolved sulfate in the water once equilibrium is achieved is 7.02 × 10^-3 M.
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The speed over a longer period of time is
1. velocity
2. momentum
3. average speed
4. instantaneous speed
Velocity and speed describe how quickly or slowly an object is moving. We frequently encounter circumstances when we must determine which of two or more moving objects is going quicker. The speed over a longer period of time is Velocity. The correct option is 1.
The pace at which an object's position changes in relation to a frame of reference and time is what is meant by velocity. Although it may appear sophisticated, velocity is just the act of moving quickly in one direction.
Since it is a vector quantity, the definition of velocity requires both magnitude (speed) and direction. It has a meter per second (ms-1) SI unit. A body is considered to be accelerating if its velocity changes, either in magnitude or direction.
Thus the correct option is 1.
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The fluid-filled interior compartment of the thylakoid network is referred to as the:
A. cytoplasm.
B. intermembrane space.
C. lumen.
D. grana.
E. stroma.
The fluid-filled interior compartment of the thylakoid network is referred to as the: Lumen
The thylakoid lumen is an aqueous phase that is continuously enclosed by the thylakoid membrane. It is essential for photophosphorylation during photosynthetic activity. Protons are hyped across the thylakoids into the lumen during the light-dependent reaction, making it acidic down to pH 4. The lumen in the chloroplast is referred to as the stroma. The stroma is the whitish fluid that surrounds the grana (thylakoids stacks) within the chloroplast. A lumen is the chloroplast membrane that surrounds space. Light energy is captured by photosystems found in thylakoid membranes. The thylakoid membrane contains enzymes required for photosynthesis's light-dependent reactions. Hydrogen ions are pumped into the thylakoid space, or lumen, during these reactions.The thylakoid space has an acidic pH due to the high concentration of hydrogen ions.
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Beryllium, the first element in group 2, has an atomic number of 4. The second element in this group has an atomic number of.
Beryllium, the first element in group 2, has an atomic number of 4. The second element in this group has an atomic number of 12.
In the field of chemistry, atomic number can be described as the number of protons that is present in the nucleus of an atom.
The atomic number of Beryllium is 4 as it has 4 protons in its nucleus.
The second member of the group 2 elements in the periodic table is Magnesium. Magnesium has an atomic number of 12 because it has 12 protons in its nucleus.
The atomic number is represented by the letter Z usually. The atomic number is usually mentioned in a periodic table at the top-left.
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is mass/weight a property or not a property?
Answer:
Physicol properties can be extensive or intensive. Extensive properties vary with the amount of the substance and include mass, weight, and volume
Explanation:
Mrs. Keep burns a walnut under a beaker of water. The beaker contains 100 g of water which warms from 25oC to 30oC. Assuming that all the heat from the burning walnut goes into the water and none of the heat is lost to the air or the beaker, how many calories are in the walnut?
a 2100 calories
b 10,500 calories
c not enough information is given
d 500 calories
The amount of heat gained by the water is 500 calories. Thus, option D is correct.
Given:
Mass of water (m) = 100 g
Change in temperature (ΔT) = 30°C - 25°C = 5°C
The specific heat capacity of water (c) is approximately 1 calorie/gram°C.
Now, the amount of heat gained by the water,
Q = mcΔT
Where:
Q is the heat gained or lost by the substance
m is the mass of the substance
c is the specific heat capacity of the substance
ΔT is the change in temperature
Plugging in the values into the formula:
Q = 100 × 1 × 5
Q = 500 calories
Therefore, the amount of heat gained by the water is 500 calories.
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Which of the samples pictured is most likely a nonmetal?
Answer:
c
Explanation:
Answer:
it is c because its a hard one and you should know what that is and it is a nonmetal even if not exactly its to be slightly
Explanation:
It is winter and you haven’t checked your tire pressure since August . Would you expect your tire pressure to be higher or lower that it was in August ?
If you haven't checked your tire pressure since August and it is now winter, you would likely expect your tire pressure to be lower than it was in August.
When it comes to tire pressure, there are a few factors that can affect it. Temperature, for example, can have a significant impact on tire pressure. In general, as temperatures decrease, tire pressure will also decrease. This is because the air inside the tire contracts in colder temperatures, resulting in a decrease in pressure.
However, there are also other factors that can affect tire pressure, such as the type of tire you have and how often you use your vehicle. If you have high-performance tires, they may be designed to maintain a higher pressure regardless of temperature changes. Additionally, if you use your vehicle frequently, you may be able to maintain a consistent tire pressure regardless of the season.
In any case, it is always a good idea to check your tire pressure regularly, especially during the winter months. Proper tire pressure is essential for safe and efficient driving, as it can affect everything from fuel economy to handling and braking performance. So, if you haven't checked your tire pressure in a while, it's best to do so as soon as possible to ensure that you're driving with optimal pressure levels.
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If a fuel cell-powered vehicle can hold a maximum of 5.0 kg of water (i.e., the product), how much total hydrogen gas and oxygen gas would you need to produce 5.0 kg of water?
To produce 5.0 kg of water, you would need approximately 0.555 kg of hydrogen gas and 0.278 kg of oxygen gas.
Water (H₂O) consists of two hydrogen atoms (H) and one oxygen atom (O). To produce 5.0 kg of water, you would need an equal amount of hydrogen gas (H₂) and oxygen gas (O₂) in a 2:1 ratio, as water has the chemical formula H₂O. The molar mass of hydrogen is 2 g/mol, and the molar mass of oxygen is 32 g/mol.
To calculate the total mass of hydrogen and oxygen needed, we can use the molar ratios:
Mass of hydrogen gas (H₂) = (2/18) * 5.0 kg = 0.555 kg
Mass of oxygen gas (O2) = (1/18) * 5.0 kg = 0.278 kg
Therefore, to make 5.0 kg of water, roughly 0.555 kg of hydrogen gas and 0.278 kg of oxygen gas are required.
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61.3 g of dinitrogen tetraoxide will decompose into how many grams of NO2? (brainliest answer if you help with both the questions please)
Answer:
12.56 moles
Explanation:
A student is asked to make up a 16% sodium chloride solution. She makes the solution by weighing an empty beaker (which has a mass of 98.56 g). Sodium chloride is added to the beaker. The mass of the beaker and sodium chloride is 114.71 g. Lastly the student added 84 mL of distilled water to the beaker. Reweighing the beaker she finds that the mass of the beaker, sodium chloride, and distilled water is 196.14 g.
Required:
What is the weight percentage of sodium chloride in this solution?
If the student makes the solution by weighing an empty beaker (which has a mass of 98.56 g). The weight percentage of sodium chloride in the solution is 16%.
The weight percentage of a solute is the percentage of the solute in grams per 100 grams of the solution. Here, we are given that a student made a 16% sodium chloride solution. So, we have to find the weight percentage of sodium chloride in the given solution.
The given solution was made by adding sodium chloride to an empty beaker with a mass of 98.56 g, and the mass of the beaker and sodium chloride was 114.71 g.
So,
the mass of sodium chloride in the beaker= Mass of the beaker, and sodium chloride - Mass of the beaker
= 114.71 - 98.56
= 16.15 g
The student added 84 mL of distilled water to the beaker and then reweighed it. The mass of the beaker, sodium chloride, and distilled water was 196.14 g.
So,
the mass of the solution= Mass of the beaker, sodium chloride, and distilled water - Mass of the beaker
= 196.14 - 98.56= 97.58 g
Now, we can calculate the weight percentage of sodium chloride in the solution.
The weight percentage of sodium chloride = (mass of sodium chloride/mass of solution) × 100%
= (16.15 / 97.58) × 100%
= 16.56%
So, the weight percentage of sodium chloride in the given solution is 16.56%.
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Since 1978, nearly 10% of the Amazon rainforest has been cleared for farming and ranching. After trees are cut down and hauled away, the remaining land is burned to remove debris. The long term effect of this process will –
A: decrease the average temperature on Earth
B: increase the average temperature on Earth
C: have little effect on the average temperature on Earth
D: increase the amount of ultraviolet radiation reaching the Earth
Answer:
c
Explanation:
Due at 8:20 am and it’s currently 2:20 am! Please help me. Do NOT send links, it’s irritating and it is a waste of time. Thank you!
Balance the following equation, then solve for the heat of the combustion reaction (ΔH rxn) of glucose:
C6H12 (g) + O2 (g)-> CO2 (g) + H2O (g)
Answer:
1,9,6,6
Explanation:
A boat at rest on the ocean moves up and down as water moves past it. What can be concluded about the nature of the water particles in the waves from rl this observation
We have the following two vectors. A
=(−4m/s)
^
+(3m/s)
^
B
=(200 cm/s)
^
+(300 cm/s)
^
What is the magnitude of the vector A
− B
? 499 m/s 6 m/s 2 m/s 1 m/s 40
m/s
The magnitude of vector A - B is 499 m/s.To find the magnitude of the vector A - B, we subtract the corresponding components of A and B and then calculate the magnitude of the resulting vector.
Given:
A = (-4 m/s) î + (3 m/s) ĵ
B = (200 cm/s) î + (300 cm/s) ĵ
First, we need to convert the units of B from cm/s to m/s:
B = (200 cm/s) î + (300 cm/s) ĵ
= (2 m/s) î + (3 m/s) ĵ
Now, subtracting the components:
A - B = (-4 m/s - 2 m/s) î + (3 m/s - 3 m/s) ĵ
= (-6 m/s) î + (0 m/s) ĵ
= (-6 m/s) î
The magnitude of A - B is the absolute value of the resulting vector:
|A - B| = |-6 m/s|
= 6 m/s
Therefore, the magnitude of vector A - B is 6 m/s.
vector subtraction and magnitude calculations to deepen your understanding of this topic.
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what is the coordination number around the central metal atom in ammonium diaquabis(oxalato)nickelate(ii) ((nh₄)₂[ni(c₂o₄)₂(h₂o)₂])?
The coordination number around the central metal atom in ammonium diaquabis(oxalato)nickelate(II) is 6.
In the given compound, ammonium diaquabis(oxalato)nickelate(II), the nickel (Ni) ion is the central metal atom. The coordination number refers to the number of ligands (atoms or molecules) that are directly bonded to the central metal atom. In this case, there are two oxalate ligands (C₂O₄²⁻) and two water ligands (H₂O) bonded to the nickel ion, resulting in a coordination number of 6.
Each oxalate ligand contributes two oxygen atoms, and each water ligand contributes one oxygen atom, giving a total of six ligands surrounding the central nickel atom.
Therefore, in the compound ammonium diaquabis(oxalato)nickelate(II), the central metal atom has a coordination number of 6.
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chemical porperties of synthetic fiber
Explanation: Some of the most important properties of synthetic materials are as follows: 1. Tensile strength 2. The Action of water 3. The Action of heat and flame 4. Thermal conductivity 5. Electrical conductivity. The usefulness or otherwise of a synthetic material depends upon the following properties. 1. Tensile strength:
PLEASE MARK ME AS THE BRAINLIEST
Which is one factor that describes a Mediterranean climate?
has many trees
is found in inland areas
has cool and rainy winters
has little to no precipitation
PLEASE I WILL MARK BRAILIEST AND GIVE 30 PTS
Answer:
dry
polar
highlands
temperate marine
temperate continental
Explanation:
PLEASE HELPPP: In the design of a new baby diaper, the manufacturer uses two polymers. The structure of these molecules is given below. Which polymer (I or II) is best suited to the outside of the diaper and which to the inside? Why?
What monomers were used to create these polymers? What type of polymerization took place?
In the design of a new baby diaper, the manufacturer uses two polymers. The polymer that is best suited to the outside of the diaper is polymer I and to the inside is polymer II
Polymers are large molecules made by bonding (chemically linking) a series of building blocks or smaller units called monomers. The word polymer comes from the Greek words for “many parts.”
Polymers don’t have a definite length. They usually don’t form crystals, either. Finally, they usually don’t have a definite melting point
Monomers used to create polymer I is a dicarboxylic acid and for polymer II is an alkene.
They undergo addition polymerization.
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10. Stronger IMFs (intermolecular forces) lead to... ?
1.higher MP and BP
2. unique coloration of compounds
3.lower MP and BP
4. weird names of compounds
When a rock is wrapped in aluminum foil, the radiation detected from the 29
rock significantly goes down. What type of radiation is being emitted?
beta
alpha
gamma
none of the answer choices
Answer:
gamma
Explanation:
The type of radiation that is being emitted from the rock is beta radiation.
Alpha particles are positively charged particles that are made up of two protons and two neutrons. They are the least penetrating type of radiation and can be stopped by a sheet of paper.
Beta particles are negatively charged particles that are made up of electrons. They are more penetrating than alpha particles and can be stopped by aluminum foil.
Gamma rays are high-energy photons that are not charged. They are the most penetrating type of radiation and can only be stopped by thick layers of lead or concrete.
In the case of the rock, the radiation is being stopped by the aluminum foil, which means that it must be beta radiation. Beta particles are more penetrating than alpha particles, but they are still not as penetrating as gamma rays. This means that the rock is probably not emitting gamma rays, and the only other possibility is beta radiation.
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2. What percentage of the offspring
will have the red flowers?
Answer:
1/4 of the offspeing will have the red flowers
What does it mean when a cell is multicellular? I only have 5 minutes so please help.
Construct a simulated 1H NMR spectrum for chloroethane by dragging and dropping the appropriate splitting patterns into the boxes on the chemical shift baseline, and by dragging integration values into the small box above each signal. Items may be used more than once. Peak heights do not represent integration.
In a 1H NMR spectrum, Chloroethane (C2H5Cl) has two different types of hydrogen atoms. The expected splitting patterns and chemical shifts for chloroethane.
Chloroethane (C2H5Cl) has two different types of hydrogen atoms due to their distinct chemical environments:
1. The two hydrogen atoms attached to the carbon that is also attached to the chlorine atom (CH2-Cl). Let's call these Ha.
2. The three hydrogen atoms attached to the second carbon in the ethane chain (CH3). Let's call these Hb.
In a 1H NMR spectrum, these two types of hydrogen atoms will have different chemical shifts and splitting patterns:
1. Ha (CH2-Cl): The Ha signal will be a triplet due to the 3 neighboring Hb protons (n + 1 rule, where n = 3). The chemical shift for Ha protons will be around 3.0 - 3.5 ppm, as this is the typical range for hydrogen atoms on a carbon connected to a halogen.
2. Hb (CH3): The Hb signal will be a quartet due to the 2 neighboring Ha protons (n + 1 rule, where n = 2). The chemical shift for Hb protons will be around 1.0 - 2.0 ppm, which is typical for hydrogen atoms on an alkyl group connected to an electronegative atom (in this case, the carbon bonded to chlorine).
In the integration values box above each signal, you would place the number of protons corresponding to each peak. For Ha, you would put '2', and for Hb, you would put '3'.
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solute separates as a solid when a saturated solution is cooled why
Answer:
When a saturated solution at a high temperature is cooled, why is the solution separated as a solid? When a saturated solution at a high temperature is cooled, inter molecular space between the molecules of the solution decreases. As a result, no more solute can remain in a solution separating out as a solid crystal.
Which description justifies why the theory of evolution is a theory and not a law? (4 points)
a
Explains how organisms change in response to the environment
b
Predicts which organism is best suited to the environment
c
Supported by a small amount of empirical evidence
d
With more evidence, it will become a law
The amount of heat needed to raise 15 g of a substance by 8 C° is 303 J.
What is the specific heat of the substance?
Use the following equation: C = Q/MΔT
The heat energy needed to change the temperature of 15 g of the sample by 8°C is given 303 J. Then, the specific heat of the substance is 2.52 J/°C g
What is calorimetry ?Calorimetry is an analytical technique used to determine the heat energy absorbed or released by a system. The calorimetric equation relating the heat energy q with the mass of the substance m, specific heat c and temperature difference ΔT is given as:
q = m c ΔT.
Given that the mass of the sample = 15 g
temperature difference ΔT = 8 °C
specific heat c = ?
The heat energy absorbed by the sample is calculated as follows:
303 J= 15 g × C × 8 °C
Then, C = 303 J /( 15 g× 8 °C) = 2.52 J/°C g
Therefore, the specific heat capacity of the substance is 2.52 J/°C g.
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Answer:
2.5 J/gC degrees
Explanation: