Question 1

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

Accepted Answer

Ability to react with oxygen

Question 2

A sample of water is heated from 25°C to 75°C. What is the temperature change in Kelvin?

Accepted Answer

$\Delta T = 50\ \mathrm{K}$

Question 3

Which of the following best describes a mixture?

Accepted Answer

A combination of two or more substances that retain their individual properties

Question 4

A student measures the mass of a metal block as 120 g and its volume as 30 cm³. What is the density of the block?

Accepted Answer

$4.0\ \mathrm{g/cm^3}$

Question 5

Which of the following is a physical change?

Accepted Answer

Boiling water

Question 6

Convert 100°F to Celsius using the formula $C = \frac{5}{9}(F - 32)$.

Accepted Answer

$37.8^\circ \mathrm{C}$

Question 7

Which of the following is NOT a phase of matter?

Accepted Answer

Solution

Question 8

A chemical reaction occurs when:

Accepted Answer

Atoms are rearranged to form new substances

Question 9

Which of the following is a homogeneous mixture?

Accepted Answer

Salt water

Question 10

A student needs to convert 250 mL to liters. What is the correct conversion?

Accepted Answer

$0.25\ \mathrm{L}$

Question 11

Which of the following is a chemical change that occurs in everyday life?

Accepted Answer

Milk souring

Question 12

Which statement best describes a compound?

Accepted Answer

A substance made of two or more elements chemically combined in a fixed ratio

Question 13

A sample of gas has a mass of 0.50 g and occupies a volume of 250 mL. What is its density in $\mathrm{g/mL}$?

Accepted Answer

$0.005\ \mathrm{g/mL}$

Question 14

Which of the following is an example of a heterogeneous mixture?

Accepted Answer

Salad

Question 15

Which process is used to separate a solid from a liquid in a heterogeneous mixture?

Accepted Answer

Filtration

Question 16

A student wants to convert 5.0 km to meters. What is the correct answer?

Accepted Answer

$5000\ \mathrm{m}$

Question 17

Which of the following is a physical property?

Accepted Answer

Boiling point

Question 18

Which of the following statements about density is correct?

Accepted Answer

Density is the ratio of mass to volume

Question 19

A student mixes vinegar and baking soda, producing bubbles and a new substance. This is an example of:

Accepted Answer

A chemical change

Question 20

Which of the following is NOT a chemical property?

Accepted Answer

Ability to conduct electricity

Matter and Measurements: Phases, Classification, Properties, and Calculations

Study Guide - Practice Questions