Decomposition of Metal Carbonates

The video tutorial explains the decomposition of metal carbonates when heated, resulting in metal oxides and carbon dioxide. It provides examples with sodium, beryllium, hydrogen, iron(III), and zinc carbonates, highlighting the formation of metal oxides and CO2. The tutorial emphasizes understanding the charges and balancing equations, with a focus on the chemical behavior of different metals in decomposition reactions.

What do metal carbonates decompose into when heated?

• Metal oxides and CO2

• Metal sulfates and SO2

• Metal hydroxides and O2

• Metal chlorides and H2O

What are the products of sodium carbonate decomposition?

• Sodium hydroxide and O2

• Sodium sulfate and SO2

• Sodium chloride and H2O

• Sodium oxide and CO2

What is the metal oxide formed when beryllium carbonate decomposes?

• Be2O

• BeO

• Be2O3

• BeO2

In the decomposition of hydrogen carbonate, what is the state of H2O at room temperature?

• Solid

• Plasma

• Liquid

• Gas

What is the charge of hydrogen in the decomposition of hydrogen carbonate?

• 1+

• 2+

• 1-

• 2-

What is the charge of Fe in iron(III) carbonate?

• 2+

• 1+

• 3+

• 4+

What are the products of iron(III) carbonate decomposition?

• Fe2O3 and CO2

• FeO and CO2

• Fe3O4 and CO2

• Fe2O3 and O2

What is the formula for zinc carbonate?

• ZnCO3

• Zn2CO3

• Zn3(CO3)2

• Zn(CO3)2

What is the metal oxide formed when zinc carbonate decomposes?

• Zn2O

• ZnO2

• Zn2O3

• ZnO

What gas is released during the decomposition of zinc carbonate?

• CO2

• O2

• H2

• N2