Chemistry, 02.04.2021 08:10, ayoismeisalex

Which reaction below is a physical change? a. CH4(g) + 2O2(g) → CO2(g) + 2HsO(l)
b. CaO(s) + H2O(l)→ Ca(OH)2(s)
c. H2O (l) → H2O(s)
D. 2HsO (l) → 2H2(g) + O2(l)

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Which reaction below is a physical change? a. CH4(g) + 2O2(g) → CO2(g) + 2HsO(l)
b. CaO(...