What is the difference between inquiry and hypothesis when using the scientific method​

Explanation:

Scientific inquiry is different from the scientific method. The scientific method follows a linear step-by-step process in order to answer a question, while scientific inquiry does not follow a linear step-by-step process. Scientific inquiry helps you think outside the box to understand the natural world.

option c is the correct answer.

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