Question

1. drag and drop the words with the descriptions.

reaction in which heat is required
reaction in which an electric current is required
reaction that requires a catalyst
reaction where the reactant is one compound
choices
electrolysis
thermal decomposition
catalytic decomposition
decomposition

Explanation:

1. For "reaction in which heat is required", thermal decomposition is a reaction that needs heat to break down a compound, so match with "thermal decomposition".
2. For "reaction in which an electric current is required", electrolysis is the process that uses an electric current to drive a chemical reaction, so match with "electrolysis".
3. For "reaction that requires a catalyst", catalytic decomposition uses a catalyst to speed up the decomposition reaction, so match with "catalytic decomposition".
4. For "reaction where the reactant is one compound", decomposition reactions involve a single compound breaking down into simpler substances, so match with "decomposition".

Answer:

• reaction in which heat is required: thermal decomposition
• reaction in which an electric current is required: electrolysis
• reaction that requires a catalyst: catalytic decomposition
• reaction where the reactant is one compound: decomposition