CHEMISTRY HIGH SCHOOL

What is the carbon cycle

Answers

Answer 1
Answer: the series of processes by which carbon compounds are interconverted in the environment, chiefly involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.
Answer 2
Answer: the cycle of thermonuclear reactions believed to occur in stars, in which carbon nuclei are repeatedly formed and broken down in the conversion of hydrogen into helium.

Related Questions

The solid form of a substance is usually more dense than its liquid and gaseous forms. Similarly the liquid form is usually more dense than the gaseous form. Which of these breaks this general density rule?A. ice floating in a glass of waterB. vapor rising from a hot cup of teaC. cooled magma sinking in a lava flowD. a hot air balloon falling as the gas inside cools
When fossil fuels are burned, _____ is released into the atmosphere.A. oxygen B. nitrogen C. ammonia D. carbon dioxide
How does the solubility of a gas change with increasing temperature? It increases. It decreases. It is uniform. The temperature does not affect the solubility of a gas.
Highlight the basic points in Lewis and Langmuir theory of electrovalency
Insulin is a protein that is used by the body to regulate both carbohydrate and fat metabolism. a bottle contains 425 ml of insulin at a concentration of 20.0 mg/ml . what is the total mass of insulin in the bottle?

The cracking of rock due to heat is an example of

Answers

answer: chemical weathering

c is wrong it’s physical weathering

How many chlorine molecules are in 35.5g of chlorine gas

Answers

since chlorine is one of the 7 diatomic elements we know that chlorine appears as Cl₂ gas naturally.  That means that the molar mass of a chlorine gas is 70.9g/mol.  That being said, first you need to find the number of moles of chlorine gas that are present in a 35.5g sample.  To do this divide 35.5g by the molar mass of chlorine gas (70.9g/mol) to get 0.501mol of chlorine.  Then you have to multiply 0.501mol by 6.02×10²³ to get the number of chlorine gas molecules.  Therefore 3.01×10²³ molecules of chlorine gas are present in a 35.5g sample.

I hope that helps.  Let me know in the comments if anything is unclear.

What is volume?A. half of the density of a substance
B. the amount of matter in a substance
C. twice the amount of mass of a substance
D. the amount of space a substance takes up

Answers

The answer is D.

Hope this helps.

Some substances cannot exist in liquid form at normal atmospheric conditions.
True or False ?

Answers

I think it might be true.
false that is what i think

Which of the following is a characteristic of proteins? A)           Some may enhance the rate of specific chemical reactions.
                B)            They may form either long, thin fibrous molecules or compact, rounded globular molecules.
                C)            They store genetic information for cellular metabolism.
                D)           They form through hydrolysis reactions.
                E)            a and b

Answers

E. Both A and B.

Enzymes, which can catalyze chemical reactions, are a type of protein. Moreover, proteins can either be fibrous and insoluble in water like actin and myacin, or globular and soluble like hemoglobin. DNA, which stores the genetic information, is not made of proteins. Lastly, proteins are made through the translation of mRNA at the ribosomes.

I hope this helps!

Final answer:

Correct answer is Option E, which includes options A and B. Proteins can enhance specific chemical reactions as enzymes and can form diverse structures. Proteins do not store genetic information and do not form through hydrolysis reactions.

Explanation:

The correct answer to this question is Option E, which are options A and B. Proteins do indeed have the ability to enhance the rate of specific chemical reactions. These are known as enzymes. Another characteristic of proteins is their diverse structure, as mentioned in option B. They can form long, thin fibrous molecules like collagen or compact, rounded globular molecules like hemoglobin. However, they do not store genetic information (that is the function of DNA and RNA), nor do they form via hydrolysis reactions. Proteins are synthesized through a process called dehydration synthesis, not hydrolysis.

Learn more about Proteins here:

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Which of the following is a property of both gases and liquids?

Answers

FLUIDITY IS PROPERTY OF BOTH LIQUIDS AND GASES
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Watch the animation and observe the titration process of a standard 0.100 M sodium hydroxide solution with 50.0 mL of a 0.100 M hydrochloric acid solution. Identify which of the following statements regarding acid-base titration are correct. A. The pH of the solution at the equivalence point is 7. B. At the end point, the pH of the solution is 10 and the color of the solution is pink. C. Before any base is added to the solution, the pH of the solution is 10. D. The pH of the solution changes very slowly at the equivalence point. E. At the beginning of the titration process, the pH of the solution increases rapidly. F. The chemical reaction involved in an acid-base titration is a neutralization reaction.
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