Balance the equations.
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a) 2N2 + 5O2 ------ 2N2O5.
b) Zn+ 2HNO3 ------ Zn(NO3)2 + H2.
c) 4Al + 3O2 ------- 2Al2O3.
d) CaCO3+2HCl------- CaCl2 + H2O+CO2.
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Answer:
2n2 +5o2 gives 2n2o5
Explanation:
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