Which of the following equations is representing combination of two elements?
(a)1CaO + CO2 → CaCO3
(b)4 Na + O2 → 2Na2 O
(c)SO2 + 1/2 O2 → SO3
(d)2Na + 2H2 O → 2NaOH + H2
Answers
Answered by
18
Answer:
(b)4Na + O2-> 2Na2O
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Answered by
6
Answer:
CaO +CO2 == CaCO3 is combination of two element
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