Which of the following statements about decomposition reactions is true? a) decomposition and combustion reactions are the same thing b) decomposition and single-displacement reactions are the same thing c) decomposition reactions are essentially the opposite of synthesis reactions d) decomposition reactions are essentially the opposite of single-displacement reactions

c) Decomposition reactions are essentially the opposite of synthesis reactions

Explanation:

1. Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.

Example:

2. Combustion is a type of chemical reaction in which fuel is reacted with oxygen to form carbon dioxide and water.

Example:  

3. Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.

Example:

4. Synthesis reaction is a chemical reaction in which two reactants are combining to form one product.

Example:  

Thus synthesis ad decomposition are opposite chemical changes as decomposition is breaking of one reactant to form multiple products and synthesis is formation of one product from multiple reactants.

the correct answer would be d. hope this !

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