<h3><u>yes </u><u>the </u><u>look </u><u>same </u><u>after </u><u>mixing </u><u>them </u><u>together</u><u>.</u></h3>
Because White sugar settles at the bottom of iodized salt. White sugar completely mixed with iodized salt.
They did not repeat their tests multiple times.
Reason being is using the same stopwatch doesn’t matter and changing the reactants won’t help, and you without a doubt need more than one person collecting the data so,
They did not repeat their tests multiple times is the answer.
4 carbon chain is butane. With a triple bond it is butane. Since the triple bond is on the first carbon it can be called 1-butyne, or but-1-yne.