The product of a combination reaction is (OH)2. if one of the reactants is h2o, what is the other reactant?

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The product of a combination reaction is (OH)2. if one of the reactants is h2o, what is the other reactant?
a.BaO2
b.BaO
c.Ba2O
d.BaH

2007-02-28 11:48:21 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

"B"

This has one O in the compound. You need one O to join with the 2 H and 1 O in the H2O to give you a total of 2 H and 2 O in the product.

2007-02-28 11:51:29 · answer #1 · answered by physandchemteach 7 · 0⤊ 0⤋

b. BaO + H2O ===> Ba(OH)2

Barium peroxide, BaO2, exists, but I think that's not what they want. Ba2O and BaH do not exist.

2007-02-28 19:54:05 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋

2007-02-28 19:56:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋