Science, asked by 69aditya69, 11 months ago

Which of the following involves combination of two elements? *

N_(2 )(g) +3H_2(g)2NH_3(g)

CaO(s) + CO_2(g)→ CaCO_3(s)

2SO_2 (g) + O_2(g)→2SO_3(g)

NH_3(g) + HCl(g)→NH_4Cl(s)

Answers

Answered by priyankapriyanka1980

6

Explanation:

1st one

it is reaction between nitrogen and hydrogen

Answered by damanbirsingh2006

11

Answer:

CaO(s) + CO_2 (g) >>CaCO_3(s) is the correct answee

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