$\text{Density} = \frac{\text{mass}}{\text{volume}}$

Question 1

Which of the following best explains why graphite and diamond, both made of carbon, have such different properties?

Accepted Answer

Their atoms are arranged in different geometric structures.

Question 2

Which of the following statements about the scientific method is correct?

Accepted Answer

A theory is a model that explains why nature behaves as it does.

Question 3

A student observes that the mass of a closed container does not change during a chemical reaction. This observation supports which scientific law?

Accepted Answer

Law of conservation of mass

Question 4

Which of the following is an example of a physical change?

Accepted Answer

Water boiling to form steam

Question 5

Which separation technique would be most appropriate for separating a mixture of sand and water?

Accepted Answer

Filtration

Question 6

A sample of copper is heated from room temperature to $95\ ^\circ\mathrm{C}$. What happens to its density?

Accepted Answer

The density decreases.

Question 7

Which of the following is an intensive property?

Accepted Answer

Density

Question 8

Which of the following is a homogeneous mixture?

Accepted Answer

Sweetened tea

Question 9

Which of the following best describes a compound?

Accepted Answer

A substance composed of two or more elements in fixed, definite proportions

Question 10

Which of the following is the correct SI base unit for temperature?

Accepted Answer

Kelvin

Question 11

A measurement is recorded as 0.0520 g. How many significant figures does this value have?

Accepted Answer

3

Question 12

Which of the following is an example of a chemical property?

Accepted Answer

Flammability

Question 13

Which prefix multiplier would you use to express a measurement of $5.57 	imes 10^{-6}$ meters?

Accepted Answer

micro

Question 14

Which temperature scale has no negative values?

Accepted Answer

Kelvin

Question 15

A student measures the mass of a block five times and gets values very close to each other, but far from the true value. The measurements are:

Accepted Answer

Precise but not accurate

Question 16

Which of the following best describes the difference between a law and a theory?

Accepted Answer

A law summarizes a series of related observations; a theory gives the underlying reasons for them.

Question 17

Which of the following is the correct formula for density?

Accepted Answer

$	ext{Density} = \frac{	ext{mass}}{	ext{volume}}$

Question 18

Which of the following is an example of potential energy?

Accepted Answer

A compressed spring

Question 19

Which of the following is a derived SI unit?

Accepted Answer

Liter

Question 20

A solution is prepared by dissolving sugar in water. Which type of mixture is this?

Accepted Answer

Homogeneous mixture

Chapter 1: Matter, Measurement, and Problem Solving – Structured Study Notes

Study Guide - Practice Questions