a student wants to measure the density of a liquid. which of these tools are needed to do so? a. a ruler and…

a student wants to measure the density of a liquid. which of these tools are needed to do so? a. a ruler and a balance b. a balance and a barometer c. a balance and a graduated cylinder d. a thermometer and a graduated cylinder
Answer
Answer:
C. a balance and a graduated cylinder
Explanation:
Step1: Recall density formula
Density $\rho=\frac{m}{V}$, where $m$ is mass and $V$ is volume.
Step2: Identify mass - measuring tool
A balance is used to measure the mass $m$ of the liquid.
Step3: Identify volume - measuring tool
A graduated cylinder is used to measure the volume $V$ of the liquid.