Question

density is mass per unit of volume. which pair of lab instruments would a student use to measure the density of seawater?
o a caliper and a flask
o a stopwatch and a beaker
o a balance and a beaker
o a meter stick and a temperature probe

Explanation:

Density is calculated as mass/volume. A balance measures mass and a flask (or beaker) can be used to measure volume of liquid.

Answer:

a balance and a beaker