Which of the following affects the rate of a reaction

D. The concentration of the reactants.

Explanation:

Rate ∝ [Reactants].

Rate of the reaction = k[Reactants]ⁿ.

where, k is the rate constant of the reaction.

n is the order of the reaction.

So, the rate of the reaction depends on the concentration of the reactants.

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.