Help plz.....?

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Garden lime or Ca[OH]2,is produced form calcium oxide or CaO by the addition of water,H2O as in the following equation

CaO + H2O ----- Ca[OH]2

Combination

Decomposition

ionic

Conservation of matter

Displacement

2007-08-23 07:50:33 · 2 answers · asked by CHRIS 1 in Science & Mathematics ➔ Chemistry

2 answers

It's certainly a combination between two chemicals (compounds, not elements), but the Law of Conservation of Matter also applies.

2007-08-23 07:56:15 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋

Not sure what you want. CaO and Ca(OH)2 are ionic compounds. The balanced equation illustrates conservation of matter. It's not a combination of nor decomposition into the elements. Nor is it a displacement.

2007-08-23 07:57:01 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋