write your observations when Mg,and Cu are heated in presence of air
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2Mg+O2-2MgO
1)It gives a white dazzling light.
2)A white substance MgO is formed.
2Cu+O2-2CuO
1)It forms a black substance copper oxide.
2Mg+O2-2MgO
1)It gives a white dazzling light.
2)A white substance MgO is formed.
2Cu+O2-2CuO
1)It forms a black substance copper oxide.
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