PDF chapter test TRY NOW
1. How many molecules are present in 9g of water
2. \(Mg\) + \(O_2\) \(\overset{Burnig}{\rightarrow}\) ‘X’, ‘X’ is
Answer variants:
\(Mg_2O\)
\(6.08\) × \(10^2{^3}\) g
\(MgO\)
\(3.01\) × \(10^2{^3}\) g
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