Question

1. the mass of a sample is measured in grams, and its volume is measured in cubic centimeters. in what units would its density be reported?
2. look at table 3.6. circle the letter of the material that will sink in liquid water at 4°c.

a. aluminum c. ice
b. corn oil d. gasoline

1. the density of a substance generally decreases as its temperature increases. are there any exceptions to this statement? explain.
2. looking at figure 2 11 on page 81, is the blue - colored liquid more or less dense than the water? would the blue - colored liquid have a density greater than or less than 1?

interpret data, page 81. looking at table 3 6, answer the questions in the book.

Explanation:

35.

Step1: Recall density formula

Density $
ho=\frac{m}{V}$, where $m$ is mass and $V$ is volume.

Step2: Substitute units

Given mass $m$ in grams (g) and volume $V$ in cubic - centimeters ($cm^{3}$). So density units are grams per cubic - centimeter ($g/cm^{3}$).

The density of water at 4°C is 1 $g/cm^{3}$. Materials with density greater than 1 $g/cm^{3}$ will sink in water. Aluminum has a density greater than 1 $g/cm^{3}$, while corn oil, ice, and gasoline have densities less than 1 $g/cm^{3}$.

Water is an exception. When water is cooled from room - temperature to 4°C, its density increases. Below 4°C, as the temperature decreases further (forming ice), the density of water decreases due to the open - lattice structure of ice.

Answer:

$g/cm^{3}$

36.