Briefly explain why experiments having both faulty design or inconsistent data or problems for scientist

Conclusions can’t be trusted.

Experiment may not be repeatable.

Data may be incorrect.

Data may not reflect actual situation.

Data may not answer question asked.

Results may be biased.

Explanation:

edg 2020 answers :)

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