Decomposition Reactions

1. 2HgO → 2Hg + O₂is an example of a decomposition reactions

True

False

2. 2N₂O₅ → O₂ + 4NO₂ Is what type of chemical reaction

Synthesis

Decomposition

Single Displacement

Double Displacement

Combustion

3. Decomposition reactions make _______ compounds.

Larger

Simpler

4. 2N₂O₅ → O₂ + 4NO₂Is what type of chemical reaction

Synthesis

Decomposition

Single Displacement

Double Displacement

Combustion

5. 2Na + I₂ → 2NaI Is what type of chemical reaction

Synthesis

Decomposition

Single Displacement

Double Displacement

Combustion

6. Mg(NO₃)₂ → Mg(NO₂)₂ + O₂ Is what type of chemical reaction

Synthesis

Decomposition

Single Displacement

Double Displacement

Combustion

7. C₁₀H₈ + 12 O₂ ---> 10 CO₂ + 4 H₂O is what type of chemical reaction

Synthesis

Decomposition

Neither

8. When water decomposes (2H₂O --> 2H₂ +O₂) what two elements are produced

Oxygen in the form of a liquid and Hydrogen in the form of gas

Oxygen and Hydrogen in a liquid form

Oxygen in the form of a gas and hydrogen in liquid form

Oxygen and Hydrogen in the form of gases

9. Heat and electricity are methods used to synthesise compounds

True

False

Heat and electricity are two methods used to decompose compounds

Explanation

Heat and electricity are two methods used to decompose compounds

Decomposition Reactions

1. 2HgO → 2Hg + O2 is an example of a decomposition reactions

2.

What first name or nickname would you like us to use?

2. 2N2O5 → O2 + 4NO2 Is what type of chemical reaction

3. Decomposition reactions make _______ compounds.

4. 2N2O5 → O2 + 4NO2 Is what type of chemical reaction

5. 2Na + I2 → 2NaI Is what type of chemical reaction

6. Mg(NO3)2 → Mg(NO2)2 + O2 Is what type of chemical reaction

7. C10H8 + 12 O2 ---> 10 CO2 + 4 H2O is what type of chemical reaction

8. When water decomposes (2H2O --> 2H2 +O2) what two elements are produced

9. Heat and electricity are methods used to synthesise compounds

1. 2HgO → 2Hg + O₂is an example of a decomposition reactions

2. 2N₂O₅ → O₂ + 4NO₂ Is what type of chemical reaction

4. 2N₂O₅ → O₂ + 4NO₂Is what type of chemical reaction

5. 2Na + I₂ → 2NaI Is what type of chemical reaction

6. Mg(NO₃)₂ → Mg(NO₂)₂ + O₂ Is what type of chemical reaction

7. C₁₀H₈ + 12 O₂ ---> 10 CO₂ + 4 H₂O is what type of chemical reaction

8. When water decomposes (2H₂O --> 2H₂ +O₂) what two elements are produced