Answer:
The composition of air this is because it vmade up of oxygen, nitrogen, Nobel gages and Carbon dioxide
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Explanation:
Answer:
Conduction, Convection and Conduction
Explanation:
Oxygen is 21% and nitrogen is 78% so combined is 99%
Fe(s) + CuSO4(aq) -> Cu(s) + FeSO4(aq) is the answer if you get it in advance...