Answer:
kidneys
Explanation:
When Boiling water,bubbles start to appear in the water and a gas rises from the surface. In 5 complete sentences, explain whether this is a physical or chemical change and WHY.
Answer:
Explanation:
Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere. There are two main types of boiling: nucleate boiling where small bubbles of vapour form at discrete points, and critical heat flux boiling where the boiling surface is heated above a certain critical temperature and a film of vapor forms on the surface. Transition boiling is an intermediate, unstable form of boiling with elements of both types. The boiling point of water is 100 °C or 212 °F but is lower with the decreased atmospheric pressure found at higher altitudes.
Boiling water is used as a method of making it potable by killing microbes and viruses that may be present. The sensitivity of different micro-organisms to heat varies. But if water is held at 100 °C (212 °F) for one minute, most micro-organisms and viruses are inactivated. Ten minutes at a temperature of 70 °C (158 °F) is also sufficient for most bacteria.
Boiling water is also used in several cooking methods including boiling, steaming and poaching.
the major side effect of ingesting activated charcoal is a) vomiting b) headaches c) abdominal pain d) black stools
The major side effect of ingesting activated charcoal is called as black stools, option D.
Chemicals can be captured in the pores of activated charcoal. In order to treat some toxins that have been ingested, it is normally administered orally. For additional purposes, the evidence is scant.
Peat, coal, wood, coconut shells, or petroleum can all be used to make charcoal. Charcoal is heated in the presence of a gas to create activated charcoal. The charcoal develops many interior pores as a result of this process. Activated charcoal may trap pollutants thanks to its pores.
To treat poisoning, activated charcoal is frequently employed. Additionally, it is claimed to treat excessive cholesterol, hangovers, and upset stomach, although the majority of these applications lack solid scientific backing.
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The major side effect of ingesting activated charcoal is d) black stools.
While some individuals may experience mild abdominal discomfort, vomiting, or headaches, these side effects are generally less common and less severe. However, it is important to note that activated charcoal should only be consumed under the guidance of a healthcare professional, as it can interact with certain medications and may not be effective for all types of poisoning or overdose. The major side effect of ingesting activated charcoal is d) black stools. it's crucial to remember that activated charcoal should only be ingested with a doctor's supervision because it may mix with some medications and isn't always helpful for treating poisoning or overdose. Black stools are the main adverse impact of consuming activated charcoal.
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which of the following involve digital quantities? the speedometer in a mint '67 camaro a linear thermostat a ten-position switch lightning
Out of the options provided, the following involve digital quantities: a ten-position switch.
A ten-position switch typically refers to a switch with ten different positions or settings, each representing a discrete digital value. The switch can be used to select one of the ten available options, which are usually represented by binary digits (0 or 1) or other digital codes.
On the other hand, the speedometer in a mint '67 Camaro and a linear thermostat do not involve digital quantities.
The speedometer in a '67 Camaro is a mechanical instrument that measures and displays the speed of the vehicle. It operates using a mechanical linkage connected to the vehicle's transmission or wheels. The speed is indicated by the position of a needle on an analog scale, rather than being represented digitally.
A linear thermostat is also an analog device used to control the temperature in a room or building. It typically consists of a bimetallic strip or a gas-filled bellows that responds to temperature changes and adjusts the heating or cooling system accordingly. The temperature is set using a dial or a slider, which does not represent a discrete digital value.
Lastly, lightning itself is not a digital quantity. It is a natural atmospheric discharge of electricity. However, if you are referring to a lightning sensor or detector that measures and detects lightning strikes, it could involve digital quantities. Such sensors often use digital circuits and algorithms to analyze the electrical signals generated by lightning strikes and identify their characteristics.
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Which of these is an example of investigating an intensive property
Answer:
What are the examples?
Answer:
determining if a rock is magnetic
Explanation:
edge 2020
hope this helps!
How many times does the Moon rotate on its axis during a lunar month?
ONE
TWO
THREE
FOUR
Answer:
one
Explanation:
im sure its one
Only 1 time, Moon rotate on its axis during a lunar month. Therefore, the correct option is option A among all the given options.
What is rotation?Nearly everything around us is in motion in a rotating direction. The movement of the cricket ball, celestial bodies, the majority of the enjoyable activities in amusement parks, every machine, washing machines, etc. Rotational motion is displayed by objects that revolve around an axis.
While not all of the body's constituent parts move in the same way, all of the body's constituent parts move in the same direction. By necessity, it becomes crucial that we investigate how the various rigid body particles move as the body is rotated. Only 1 time, Moon rotate on its axis during a lunar month.
Therefore, the correct option is option A.
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What is needed for a wind farm to be effective
Answer:
for a effective wind farm you would need wind turbines a windy area a rotation powered generator and something to use it on
Explanation:
draw both enolates formed when the ketone is treated with base. include charges. draw the oxyanion species; do not draw carbanion resonance forms. the starting material is a 6 carbon ring where carbon 1 is double bonded to oxygen and carbon 2 has a methyl substituent. this forms enolate 1 and enolate 2.
When a ketone is treated with a base, it can form two different enolates due to tautomerism. Enolate 1 is formed when the hydrogen from the α-carbon is removed, forming a double bond between the α-carbon and the oxygen. Enolate 2 is formed when the hydrogen from the methyl group is removed, forming a double bond between the methyl group and the α-carbon.
The starting material is a 6 carbon ring with a ketone functional group on carbon 1 and a methyl group on carbon 2. When a strong base is added, such as sodium hydroxide (NaOH), it can deprotonate the α-carbon or the methyl group. When the α-carbon is deprotonated, it forms enolate 1 with a negative charge on the oxygen and a double bond between the α-carbon and the oxygen. When the methyl group is deprotonated, it forms enolate 2 with a negative charge on the α-carbon and a double bond between the α-carbon and the methyl group.
In summary, when a ketone is treated with a base, it can form two different enolates, enolate 1 and enolate 2. Enolate 1 is formed when the α-carbon is deprotonated, and enolate 2 is formed when the methyl group is deprotonated. These enolates have different structures due to tautomerism and can be used in different reactions in organic chemistry.
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What does it mean to "fix" hydrogen? Why would Fritz Haber’s
method for doing so be considered "the most important invention of
the twentieth century"?
To "fix" hydrogen means to convert it from its gaseous form (H₂) into a chemically usable form or compound.
Fritz Haber's method for fixing hydrogen, known as the Haber-Bosch process, involves combining hydrogen (H₂) with nitrogen (N₂) from the air to produce ammonia (NH₃) through a catalytic reaction. This ammonia can then be used to produce fertilizers, explosives, and other important chemicals.
Fritz Haber's method is considered the most important invention of the twentieth century because it revolutionized agriculture and food production. The production of ammonia-based fertilizers made it possible to significantly increase crop yields, addressing global food shortages and supporting a growing population.
This process had a profound impact on global agriculture and played a crucial role in the Green Revolution, which helped alleviate hunger and improved living standards worldwide.
Additionally, the Haber-Bosch process also enabled the production of synthetic materials, such as plastics and fibers, that have transformed various industries and contributed to technological advancements.
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What is the Molar mass of NH4C2H3O2
Ammonium acetate, or NH4C2H3O2, has a molar mass and molecular weight of 77.082.
What does the chemical formula NH4C2H3O2 mean?Ammonium acetate is known by this name. There are no synonyms. Acetic acid, ammonium salt is the chemical name.Thus, the equation is NH 4 C 2 H 302. Thus, we have the following four elements, nitrogen, hydrogen, carbon, and oxygen. One nitrogen atom makes up the entire formula. The amount of carbon atoms is excessive, and the number of hard-line tries is four plus three, which equals seven.In ammonium acetate, hydrogen makes up 5.23% of the mass composition.There are two carbon atoms, seven hydrogen atoms, one nitrogen atom, and two oxygen atoms in ammonium acetate.To learn more about Ammonium acetate refer to:
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Identify which properties are common to each of the following chemical families
(a) alkali metals
(b) alkaline earth metals
(c) halogens
(d) noble gases
The noble gases have a full outer shell of valence electrons, making them stable and unreactive. They are colorless, odorless gases at room temperature and have very low boiling points. Their lack of reactivity makes them useful in a variety of applications, including lighting and welding.
The properties that are common to each of the following chemical families include:
(a) Alkali metals The alkali metals have a single valence electron in their outermost shell, which is easily lost to form an ion with a charge of +1. They are the most reactive metals, reacting with water and air to produce hydrogen gas and an oxide layer, respectively. They are silvery-white and have a soft texture.
(b) Alkaline earth metals The alkaline earth metals have two valence electrons in their outermost shell, which they readily lose to form ions with a charge of +2. They are less reactive than the alkali metals, but they still react with oxygen to form an oxide layer on their surface. They are also silvery-white in color and have a harder texture than the alkali metals.
(c) Halogens The halogens have seven valence electrons in their outermost shell, making them highly reactive nonmetals. They readily form ions with a charge of -1 by gaining an electron. They are diatomic molecules at room temperature and can be found in a variety of colors and states of matter.
(d) Noble gases The noble gases have a full outer shell of valence electrons, making them stable and unreactive. They are colorless, odorless gases at room temperature and have very low boiling points. Their lack of reactivity makes them useful in a variety of applications, including lighting and welding. These properties are common to each of the following chemical families.
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A student observes two cells. The student must classify the cells as either fungus or bacteria.What evidence can the student use to classify the cells?
Answer:
The bacteria cell has cytoplasm.
which change in the blood chemistry causes an increase in respiration?
There are several changes in blood chemistry that can lead to an increase in respiration.
One of the most significant factors is the buildup of carbon dioxide in the bloodstream. As carbon dioxide levels rise, the body's respiratory system responds by increasing the rate and depth of breathing to expel excess CO2 and maintain proper blood pH levels.
Another factor that can increase respiration is a decrease in oxygen levels in the blood. When oxygen levels drop, the body attempts to compensate by breathing faster and deeper to take in more oxygen. This response is particularly important in situations where oxygen delivery to the body's tissues is compromised, such as during exercise or at high altitudes.
Overall, respiration is closely tied to blood chemistry, with many different factors influencing how and why we breathe. By maintaining a delicate balance of gases and nutrients in the bloodstream, our bodies are able to efficiently extract oxygen and eliminate waste products, ensuring that our cells and tissues receive the oxygen they need to function properly.
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Which describes an element?
A.They cannot be broken down any further.
B.They can combine with other elements to form atoms.
C.They were all discovered at the same time.
D.They were created in the Earth’s core.
Answer:
I think it's D one. Because all others are wrong
Answer: They can combine with other elements to form atoms.
Explanation:
How many total atoms are in one molecule of cobalt hydroxide?
Answer: Hello! I'm Jungkook. Here is your answer.....
1 Atom.
Explanation:
Hope this helps! Anneyong/Bye!
xoxoKookie
The NH3 synthesis i Haber's process is an exothermic reaction it should be favoured at low temperature but optimum temperature is 400 degree Why?
The Haber process is a complex industrial process, and several factors must be taken into consideration when determining the optimum temperature.
What is Harber process?
Ammonia (NH3) is created chemically by the Haber process from nitrogen gas (N2) and hydrogen gas (H2). The technique was created in the early 20th century by a German chemist by the name of Fritz Haber, hence the name.
With the aid of a catalyst, usually iron, the Haber process involves the reaction of nitrogen gas and hydrogen gas at high pressure and high temperature. The reaction's chemical equation is as follows:
N2 + 3H2 ⇌ 2NH3
In the Haber process, the creation of ammonia (NH3) is an exothermic reaction. Le Chatelier's principle states that an exothermic reaction is more advantageous at lower temperatures. In order to maximise the ammonia yield, one might therefore infer that the Haber process should be carried out at low temperatures.
But because the Haber process is a sophisticated industrial procedure, choosing the ideal temperature requires careful thought of a number of variables. While a low temperature may promote the forward reaction, it may also cause the reaction to proceed more slowly, resulting in less ammonia being produced. The pressure and concentration of the reactants also have an impact on reaction rate.
The Haber process has been successfully used at temperatures between 400 and 450°C, based on the catalyst employed. Due to the low temperature favouring the forward reaction, the reaction rate is high enough at this temperature to achieve an acceptable ammonia production rate while also allowing for a good yield of ammonia. Moreover, the inclusion of a catalyst (often iron) can speed up the reaction even more and boost ammonia output.
In conclusion, even if the forward reaction in the Haber process may be favoured by a low temperature, this does not mean that this temperature is the best one because other variables that affect the reaction rate and production rate may also be at play. By testing, it has been discovered that a catalyst and a temperature of roughly 400–450°C offer the greatest ammonia yield and reaction rate balance.
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i need to know how answer these questions????????????????????????????????
Choose all the nucleophiles.
Choose one or more:
CH3SNa
NaNH2
H3O+
CH3OH
CH3CH2CH3
NH4+
OH-
(CH3)3CLi
Answer:
CH3CH2CH3
(CH3)3CLi
CH3SNa
Explanation:
Molecules that contain only carbon and hydrogen are __________.
Answer:
Molecules that contain only carbon and hydrogen are Hydrocarbons.
3 Ag(s) + 4 HNO3 → 3 AgNO3 + NO(g) + 2 H2OThe reaction of silver metal and dilute nitric acid proceeds according to the equation above. If 0.10 mole of powdered silver is added to 10. milliliters of 6.0-molar nitric acid, the number of moles of NO gas that can be formed is
Answer:
\(0.015\text{ mol}\)Explanation:
Here, we want to get the number of moles of NO gas that can be formed
To answer this, we need to be sure of the limiting reagent
The limiting reagent is the one that is responsible for the number of moles of product formed
From the shown balanced equation of reaction, 3 moles of silver produced 1 mole of the gas
Thus, 0.1 mol of powdered silver will produce:
\(\frac{0.1}{3}\text{ = 0.033 mol}\)For the nitric acid, we need to get the number of moles that reacted
To get this, we have to multiply the volume (in L) that reacted by the molarity
Mathematically, we have that as:
\(\begin{gathered} 10\text{ ml = }\frac{10}{1000}\text{ = 0.01 L} \\ \\ number\text{ of moles = volume }\times\text{ molarity} \\ number\text{ of moles = 0.01 }\times\text{ 6 = 0.06 moles} \end{gathered}\)From the equation of reaction, 4 moles of the nitrate gave 1 mole of the gas
Thus, we have it that 0.06 moles will give:
\(\frac{0.06}{4}\text{ = 0.015 mole}\)From what we see, the number of moles produced by the nitrate is less than what was produced by the solid
Thus, the nitrate is the limiting reagent and the number of moles of the gas produced is 0.015 mol
F2(g)+2Br(aq)=Br(t)+F(aq)
which species is redused?
a)F
b)Br
c)F2
d)Br2
The Answer For Your Question is:
A) F
what is the drag force acting on a car with a resultant force of 600N when the engine is pushing it with a force of 11,000N
Answer:
10 400 N
Explanation:
A drag force is an oppositional or limiting force which must be overcome before an object must move wit a force. The lesser the drag force, the higher the probability that an object would move easily.
From the question give, the resultant force of the was is 600 N and force from the engine - 11 000 N.
Drag force = 11 000 - 600
= 10 400 N
The drag force on the car is 10 400 N.
This shows that the car would not move since the drag force (10 400 N) is far greater than the resultant force(600 N).
what can you deduce about the conformation of the polystyrene chains under the conditions of the visocity determinations
Viscosity of polystyrene is determined to know the size of polystyrene its compression, and molding capacity.
To obtain the perfect shape and size the configuration of polystyrene should be maintained under different conditions.
So, to deduce the confirmation of the polystyrene under viscosity determination we can apply 2 methods;
1. By adding excess diluents to the polystyrene which reduces its viscosity.
2. By introducing or adding small linear chains by addition method to the molecular chains of polystyrene molecular structure to reduce chain entanglement.
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Which of the following does NOT move thermal energy
through convection currents on Earth?
a the ocean
b the atmosphere
€ molten rock
identify the initial and final oxidation states for the element carbon in the equation c(s)⟶co(g)
initial oxidation state:
final oxidation state:
Initial oxidation state of carbon in c(s) is 0 and final oxidation state in co(g) is +2.
In the equation c(s)⟶co(g), carbon undergoes oxidation as it gains oxygen atoms.
The initial oxidation state of carbon in its elemental form is 0.
In carbon monoxide, the carbon is bonded with oxygen in a covalent bond, with carbon having a partial positive charge and oxygen having a partial negative charge.
In this compound, carbon has an oxidation state of +2 as it has lost two electrons to the more electronegative oxygen atom.
Therefore, the initial oxidation state of carbon in c(s) is 0, and the final oxidation state in co(g) is +2.
This change in oxidation state shows that carbon has undergone oxidation in the process of forming carbon monoxide.
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Initial oxidation state: 0
Final oxidation state: +2
In the equation \(c(s)⟶co(g)\), the carbon atom starts out in its elemental form as graphite (C(s)) with an oxidation state of 0. It then undergoes oxidation to form carbon monoxide (CO(g)), where the carbon has an oxidation state of +2. This is because oxygen has an oxidation state of -2 and the sum of oxidation states in a compound must equal the overall charge, which in this case is 0. Therefore, the oxidation state of carbon in CO is +2.
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Given the equilibrium system at 25°C:NH4Cl(s) = NH(aq) + Cl(aq)(AH = +3.5 kcal/mole)Which change will shift the equilibrium to the right?
Explanation
NH4Cl(s) = NH4+(aq) + Cl-(aq) AH = +3.5 kcal/mole
We have some changes that shift the equilibrium to the right, according to Le Châtelier's principle.
I will write some of them:
By Adding amount of NH4Cl or by increasing the temperature because according to the heat of the reaction this is an endothermic reaction.
Answer: Increasing the temperature of the system.
What are the 3 stages of the carbon fixation cycle?
Answer:
The Calvin cycle is organized into three basic stages: fixation, reduction, and regeneration.
determine the ph of a 0.741 m lioh solution at 25°c.
The pH of the 0.741 M LiOH solution at 25°C is approximately 13.87.
To determine the pH of a 0.741 M LiOH solution at 25°C, we need to calculate the concentration of hydroxide ions (OH-) in the solution and then use that value to find the pOH. Finally, we can calculate the pH using the equation pH = 14 - pOH.
LiOH is a strong base that dissociates completely in water, so the concentration of hydroxide ions is equal to the concentration of LiOH. In this case, the concentration is given as 0.741 M.
Next, we can calculate the pOH using the equation pOH = -log[OH-]. Since the concentration of hydroxide ions is 0.741 M, the pOH is -log(0.741) = 0.13.
Finally, we can calculate the pH using the equation pH = 14 - pOH. Substituting the value of pOH, we get pH = 14 - 0.13 = 13.87.
Therefore, the pH of the 0.741 M LiOH solution at 25°C is approximately 13.87.
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4) Oxygen is an example of a(n)
a) Nonmetal
b) Metal
c) Halogen
d) Noble Gas
Water is a pure substance. Which of the following is true about water?
Compute the relative humidity (RH) to nearest percent for each of the following atmospheric conditions:
vapor pressure = 5 mb, saturation vapor pressure = 10 mb, RH = Answer%
mixing ratio = 15 g/kg, saturation mixing ratio = 20 g/kg, RH = Answer%
mixing ratio = 25 g/kg, saturation mixing ratio = 25 g/kg, RH = Answer%
vapor pressure = 5 mb, saturation vapor pressure = 10 mb, RH = 50%
mixing ratio = 15 g/kg, saturation mixing ratio = 20 g/kg, RH = 75%
mixing ratio = 25 g/kg, saturation mixing ratio = 25 g/kg, RH = 100%
For each condition, we can calculate the relative humidity (RH) using the formula:
RH = (vapor pressure/saturation vapor pressure) × 100%
1. For vapor pressure = 5 mb and saturation vapor pressure = 10 mb:
RH = (5 mb / 10 mb) × 100% = 50%
2. For mixing ratio = 15 g/kg and saturation mixing ratio = 20 g/kg:
RH = (15 g/kg / 20 g/kg) × 100% = 75%
3. For mixing ratio = 25 g/kg and saturation mixing ratio = 25 g/kg:
RH = (25 g/kg / 25 g/kg) × 100% = 100%
In the first case, the vapor pressure is half of the saturation vapor pressure, resulting in an RH of 50%. This indicates that the air is holding 50% of the maximum amount of water vapor it can hold at that temperature.
In the second case, the mixing ratio is 75% of the saturation mixing ratio, resulting in an RH of 75%. This means the air is holding 75% of the maximum amount of water vapor it can hold at that temperature.
In the third case, the mixing ratio is equal to the saturation mixing ratio, resulting in an RH of 100%. This indicates that the air is holding the maximum amount of water vapor it can hold at that temperature, leading to saturated conditions.
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