Question

drag each chemical equation to the correct location. sort the chemical equations based on the chemical reactions they represent. water → hydrogen + oxygen iron + oxygen → iron oxide sodium + chlorine → sodium chloride sulfur + oxygen → sulfur dioxide potassium + chlorine → potassium chloride calcium carbonate → calcium oxide + carbon dioxide synthesis decomposition

Explanation:

Step1: Recall reaction types

Synthesis reactions have multiple reactants forming one product. Decomposition reactions have one reactant forming multiple products.

Step2: Identify synthesis reactions

iron + oxygen → iron oxide, sulfur + oxygen → sulfur dioxide, sodium + chlorine → sodium chloride, potassium + chlorine → potassium chloride are synthesis reactions as multiple substances combine to form one.

Step3: Identify decomposition reactions

water → hydrogen + oxygen, calcium carbonate → calcium oxide + carbon dioxide are decomposition reactions as one substance breaks down into multiple substances.

Answer:

Synthesis: iron + oxygen → iron oxide, sulfur + oxygen → sulfur dioxide, sodium + chlorine → sodium chloride, potassium + chlorine → potassium chloride
Decomposition: water → hydrogen + oxygen, calcium carbonate → calcium oxide + carbon dioxide