Chemistry, asked by dxvdth05, 9 months ago

Which of the following involves combination of two elements?
N2 (9) + 3H2(g) + 2NH3(g)
CaO) +CO )
CaCO3(9)
250 (9) + O2(g) 2503(9)
NH3(9) + HCI) - NH CH(s)​

Answers

Answered by Anonymous
2

1st, 2nd and 3rd equations show combination reaction

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