Which of the following reactions shows a chemical change producing a gas?
A. H₂(g) + O₂(g) → H₂O()
B. 2CH3OH()+302(g) → 2C02(g) + 4H₂O()
C. NaCl(s)→ NaCl(aq)
D. 2AgNO3(aq) + CaBr₂(aq) → 2AgBr(s) + Ca(NO3)2(aq)
It’s B