Question

Q1. The given equation represents the reaction of sodium metal with water.
Sodium + Water Sodium hydroxide + Hydrogen
Which of the following chemical equations represents a complete balanced chemic
equation for the given word equation?
A. 2Na(s) + H,0 -> 2NaOH(aq) +H; (3)
B. Na(s) + 24,0, > NaOH(aq) +2H2(8)
C. 2Na(s) + 2H,0 -2NaOH(aq) + 2H,(9)
D. 2Na(s) + 2H2O - > 2NaOH(aq) + 11 (g)
Q2. Identify the chemical equation which represents a complete balanced equatio
the reaction of barium chloride with sodium sulphate to produce barium sulpha
sodium chloride
A. BaCl (aq) + Na,so, (aq) - BaSO (s) + 2NaCl(aq)
B. BaCl,(aq) + Na, SO, (aq) - > 2BaSO4(s) + 2NaCl(aq)​

Answer 1

Answer:

1) 2Na(s)+2H2O>2NaOH(aq)+2H,(9)

true is 2Na(s)+2H2O>2NaOH (aq)+H2(g)

2) BaCl2 + Na2SO4 > BaSO4 + 2NaCl.