Enter the coefficients directly from the balanced chemical equation. do not reduce to lowest terms. for example: if 3 moles h2 react with 3 moles o2, enter "3" for each, not "1".

according to the following reaction:

ca(oh)2(aq) + 2hcl(aq) -> cacl2(aq) + 2h20(l)

what would you multiply "moles of calcium hydroxide" by to convert the units of "moles of water"?

moles ca(oh)2. (number)(unit) ÷ (number) (unit) = moles h2o

The coefficients are 2 for H₂O and 1 for Ca(OH)₂.

Explanation:

Let's consider the following reaction.

Ca(OH)₂(aq) + 2 HCl(aq) → CaCl₂(aq) + 2 H₂O(l)

According to the balanced equation, the molar ratio of H₂O to Ca(OH)₂ is 2:1. Using this conversion factor, we have the following proportion:

moles Ca(OH)₂. (2 mol H₂O ÷ 1 mol Ca(OH)₂) = moles H₂O

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

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