Question 1

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

Accepted Answer

Density

Question 2

A student mixes sand and salt together in a beaker. This mixture is best classified as:

Accepted Answer

A heterogeneous mixture

Question 3

Which statement best describes the Law of Conservation of Mass?

Accepted Answer

The total mass of reactants and products remains unchanged during a chemical reaction.

Question 4

Which of the following is NOT a chemical property?

Accepted Answer

Melting point

Question 5

Which of the following is a pure substance?

Accepted Answer

Copper metal

Question 6

A sample of matter is uniform throughout and can be separated into two substances by a physical process. How should it be classified?

Accepted Answer

Homogeneous mixture

Question 7

Which of the following best illustrates the Law of Conservation of Mass in a real-world scenario?

Accepted Answer

Dissolving sugar in water and finding the total mass is equal to the sum of sugar and water masses

Question 8

Which of the following is a correct classification for a mixture of oil and water?

Accepted Answer

Heterogeneous mixture

Question 9

Which of the following changes is a chemical change?

Accepted Answer

Burning of wood

Question 10

A student combines 10 g of substance A with 15 g of substance B in a closed container. After the reaction, the total mass of the products is measured. According to the Law of Conservation of Mass, what should the mass of the products be?

Accepted Answer

$$25\ \mathrm{g}$$

Question 11

Which of the following is an example of a compound?

Accepted Answer

Water

Question 12

Which property can be used to distinguish a chemical property from a physical property?

Accepted Answer

Whether the property can be measured without changing the substance's composition

Question 13

Which of the following is a homogeneous mixture?

Accepted Answer

Salt dissolved in water

Question 14

Which of the following best describes an element?

Accepted Answer

A pure substance that cannot be broken down into simpler substances by chemical means

Question 15

Which of the following is NOT a correct classification?

Accepted Answer

Brass – Element

Fundamental Concepts in General Chemistry: Properties, Classification of Matter, and Laws of Chemical Combination

Study Guide - Practice Questions

Study Guide - Flashcards