Question

Colorful fireworks often involve the decomposition of barium nitrate and potassium chlorate and the reaction of the metals magnesium, aluminum, and iron with oxygen.

a) True
b) False

Answer 1

Colorful fireworks often involve the decomposition of barium nitrate and potassium chlorate and the reaction of the metals magnesium, aluminum, and iron with oxygen.

Step-by-step explanation:

The statement 'Colorful fireworks often involve the decomposition of barium nitrate and potassium chlorate and the reaction of the metals magnesium, aluminum, and iron with oxygen.' is true.

(a) The formula for barium nitrate is Ba(NO3)2. The formula for potassium chlorate is KClO3.

(b) The equation for the decomposition of solid potassium chlorate is: 2 KClO3 → 2 KCl + 3 O2.

(c) The equation for the decomposition of solid barium nitrate is: 2 Ba(NO3)2 → 2 BaO + 4 NO2 + O2.

(d) The equations for the reactions of magnesium, aluminum, and iron with oxygen are:

1. Magnesium: 2 Mg + O2 → 2 MgO.
2. Aluminum: 4 Al + 3 O2 → 2 Al2O3.
3. Iron: 4 Fe + 3 O2 → 2 Fe2O3.