<span>the chemical equation will be Ni(OH)2(s)------>heat---> NiO(s) + H2O(g)
</span><span>we know that the heat supplied to decompose the compound.In the result the product H2O is assumed to be in the vapor state so that is gas.
hope it helps
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Metals are the most abundant
Solids are tightly compacted
Liquids are medium
And gases are very spaced and floating around
W = F = mg
(2)(9.8)
W = 19.6 N