In the equation Ca(s) + 2H2O(l) -->Ca(OH)2(aq) + H2(g) list each element used as a reactant, and tell how many atoms of each are needed for this reaction.

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r3t40 r3t40 · Answer 1 · 2019-07-04T17:41:45+02:00

The reactants are Calcium, Hydrogen and Oxygen.

We need 1 atom of Calcium, 4 atoms of Hydrogen and 2 atoms of Oxygen.

Hope this helps.

r3t40

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