Balnced symbol equations

Question 1

magnesium + hydrochloric acid –> magnesium chloride + hydrogen

Answer 1

Mg (s) + 2 HCl (aq) –> MgCl 2 (aq) + H 2 (g)

Question 2

calcium + oxygen–> calcium oxide

Answer 2

2 Ca (s) + O2 (g) → 2 CaO (s)

Question 3

hydrogen + nitrogen –> ammonia

Answer 3

N2 + 3H2 –> 2NH3

Question 4

copper oxide + nitric acid –> copper nitrate and water

Answer 4

CuO + 2HNO3 –> Cu(NO3)2 + H2O

Question 5

ethanol + oxygen –> carbon dioxide + water

Answer 5

C2H6O + O2 –> CO2 + 3H2O