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Can anyone please help me with my physical science questions???

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A balanced chemical equation contains the chemical formulas of all of the reactants and products as well as ______ to represent their relative proportions.

A. coefficients

B. fractions

C. powers

D. variables

A ______ reaction is a reaction where one element replaces another in a compound.

A. Polymerization Reaction

B. Exothermic Reaction

C. Single Replacement Reaction

D. Double Replacement Reaction

In a ______ reaction, ions are exchanged between two ionic compounds in solution.

A. Combustion Reaction

B. Polymerization Reaction

C. Single Replacement Reaction

D. Double Replacement Reaction

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  1. a, c ,d


  2. I got A C and D too.

  3. A, C, D
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