3. Which of the following would not be considered evidence of a chemical reactio O A new color appears. O A precipitate is formed. An odor is given off. Reactant changes phase. Complete the missing number to balance the following reaction. Sno, + 2 H, Sn +. H.O

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Q: • C. Decomposition

A: As there is one molecule is breaking into two molecules. So, it is Decomposition reaction.

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A: The given unbalanced equation is: P + O2 ----> P2O5

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A:

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A:

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A:

Q: 3. In a chemical reaction, energy is lost in the form of heat A.True B. False

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Q: 7. Fill in: CI

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Q: dentify the mole ratios from the balanced reaction (=

A: 3CO molecules react to form 2Fe molecules.    CO :  Fe     3   : 2

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A: Dear student this question is related to general chemistry.

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A:

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".