Which one is a combination reaction? "
a) CaCO3 CaO + CO2
b) NaOH + HCl NaCl + H2O
c) AgNO3 + NaCl AgCl + NaNO 3
d) 4Na + O2 2Na2O
Answers
Answered by
5
Answer:
the correct option is d
hope it helps you please mark me the brainlist and thank also
Answered by
1
Answer:
d) 4Na + O2--- 2Na2O is a combination reaction.
Similar questions