Which term describes a physical or mental representation of an object or event

Avariable that is not being directly tested during an experiment should be

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity