Chemistry, 09.03.2021 21:20 FantasticFerret
Which statement about the carbon cycle is most true?
A. Energy is destroyed when organic matter decays.
B. The total mass of carbon on Earth is always increasing.
C. Carbon is lost from the cycle when it enters the atmosphere.
D. Carbon changes form, but the total amount on Earth remains the same
Answers: 2
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10. according to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants?
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Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore
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Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?
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Chemistry, 22.06.2019 14:00
Which of the following is true about a carbonated soft drink? . the carbon dioxide is the solvent, and water is the solute.. the water is the solution, and carbon dioxide is the solvent.. the carbon dioxide is the solution, and the water is the solvent.. the water is the solvent, and the carbon dioxide is the solute.. .
Answers: 1
Which statement about the carbon cycle is most true?
A. Energy is destroyed when organic matter dec...
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