Question

select the correct answer from each drop-down menu. identify the type of reaction represented by each equation. a: h₂ + cl₂ → 2hcl b: ch₄ + 2o₂ → co₂ + 2h₂o equation a represents a dropdown reaction, and equation b represents a dropdown reaction. dropdown options: combustion, decomposition, double displacement, single displacement, synthesis buttons: reset, next

Explanation:

For Equation A: \( \ce{H_2 + Cl_2 -> 2HCl} \), two reactants (hydrogen and chlorine) combine to form a single product (hydrogen chloride). This fits the definition of a synthesis reaction (also called combination reaction), where substances combine to form a more complex substance.

For Equation B: \( \ce{CH_4 + 2O_2 -> CO_2 + 2H_2O} \), a hydrocarbon (methane) reacts with oxygen, producing carbon dioxide and water. This is characteristic of a combustion reaction, where a substance reacts with oxygen, usually releasing energy (like in burning fuels).

Answer:

Equation A represents a synthesis reaction, and equation B represents a combustion reaction.