Occurs where continental slope levels off and sediment accumulate?
a. continental slope
b. mid-ocean ridge
c. abyssal plain
d. continental shelf
e. ocean trench

C, the abyssal plain. It occurs while continental slope levels off and when the sediments accumulate.

answer; /// i believe the correct answer is (reactants);

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