****I RLY NEED HELP RN!!! ITS CHEMISTRY AND I AM SOOOO LOST. CAN SOMEONE PLZ PLZ PLZ HELP A GIRL OUT??? I WILL MARK BRAINLIEST, ETC!!!!!
Balance the following chemical equations:

1) AgNO3 + KCl AgCl + KNO3

2) H2O + SO3 H2SO4

3) KI + Cl2 KCl + I2

4) NaHCO3 Na2CO3 + H2O + CO2

5) Zn + HCl ZnCl2 + H2

6) BaCl2 + Na2SO4 BaSO4 + NaCl