In a lab, students are facilitating chemical reactions. The reaction that they are working with is breaking a single compound down into two or more simpler substances. What type of reaction are
the students facilitating?
O a combustion reaction
O a synthesis reaction
O a single displacement reaction
O a decomposition reaction

answer; i believe that the best answer is (secondary cardiac arrest due to

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds