What are the coefficients? ___Ca +___H(NO3)>___H2+___Ca(NO3)

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2, 2, 1, 2

Explanation:

The coefficients, in sequential order, are:

2, 2, 1, 2, because the number of nitrogen, oxygen, hydrogen, and calcium atoms are equal on both sides of this equation to make the reactants equal to the product according to the law of conservation of matter.

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