A student carries out a chemical reaction that produces a brown powder. How should the student measure the amount of product formed?
Measure the amount of time it takes for the reaction to happen.
Remove the product from the beaker and use a scale to find its mass.
Measure the length of the powder across the bottom of the beaker.
Record the change in temperature of the beaker.

B

Explanation:

The best way to find out the amount of a substance, especially if you know what it is, is to measure its mass. If the substance is homogenous (even all the way through), then you can determine some other properties of it, such as its volume and number of moles, just by measuring the mass. Hope this helps!

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