Question

Magnesium+Oxygen=?

Iorn+Oxygen+Water=?​

Answer 1

1. MgO
2. Fe203.nH20

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Answer 2

$\huge \tt \color{violet} \star\: ANSWER \: \star$

1. MgO
2. Fe2O3.nH2O

By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.