Question and answer
The coefficients in a balanced chemical equation always can express the ratio of A. moles of reactants and products. B. volume of reactants and products. C. atoms of reactants and products. D.
mass of reactants and products.
A chemical equation shows the ratio of C. atoms of reactants and products.
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User: The coefficients in a balanced chemical equation always can express the ratio of A. moles of reactants and products. B. volume of reactants and products. C. atoms of reactants and products. D. mass of reactants and products.

Weegy: A chemical equation shows the ratio of C. atoms of reactants and products.
cha97mw|Points 1072|

User: When magnesium carbonate, MgCO2, reacts with nitric acid, HNO3, it forms magnesium nitrate, Mg(NO3)2, and carbonic acid, H2CO3. Carbonic acid then breaks down into water and carbon dioxide. Which two types of reactions take place in this process? A. synthesis and decomposition B. single-replacement and combustion C. double-replacement and decomposition D. double-replacement and combustion

Weegy: C. double-replacement and decomposition
cha97mw|Points 1072|

User: Which of the following is NOT always true about a synthesis reaction? A. One product is formed. B. There is only one reactant. C. The general formula is A + B ? C. D. A reactant might be a compound, or it might be an element.

Weegy: The answer is A. One product is formed.
Expert answered|geeknik|Points 0|

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Asked 6/22/2012 5:55:07 PM
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