Incorrect. Did you rem to multiply each of the at theses by the the and then the

Question

Incorrect. Did you rem to multiply each of the at theses by the the and then the Cu(NO3)2 Cuo + 02 Incorrect. Did you remember to include all oxygens when counting the number of oxygen atoms on each side of the equation since oxygen a HNO3 + No No2 + ] Incorrect. Do you have the same number of atoms of each of the element on each side of the equation? Fe2S3 Fe E Incorrect. Did you remember to include all oxygen atoms when balancding the equation since oxygen appears in two of the products? H20 co2 t 02 HCN +

Explanation / Answer

Balanced equations-

1. 2Cu(NO3)2 ---> 2CuO + 4NO2 + O2

2. 3NO2 + H2O --> 2HNO3 + NO

3. 2Fe + 3S ---> Fe2S3

4. 4HCN + 5O2 --> 2N2 + 4CO2 + 2H2O

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