Question 1

Which of the following is NOT considered matter?

Accepted Answer

Sunlight

Question 2

A student mixes oil and vinegar in a beaker. What type of mixture is formed?

Accepted Answer

Heterogeneous mixture

Question 3

Which of the following is a physical change?

Accepted Answer

Melting ice

Question 4

Which statement best describes a chemical property?

Accepted Answer

The ability of iron to rust

Question 5

Which states of matter have a definite volume?

Accepted Answer

Solids and liquids

Question 6

Which of the following is a pure substance?

Accepted Answer

Oxygen gas

Question 7

A chemical reaction is represented by the equation $$\mathrm{2H_2O \rightarrow 2H_2 + O_2$} . $$What type of change does this represent?

Accepted Answer

Chemical change

Question 8

Which of the following best describes a homogeneous mixture?

Accepted Answer

A mixture with a uniform composition throughout

Question 9

Which process changes a solid directly into a gas?

Accepted Answer

Sublimation

Question 10

Which of the following is an example of a chemical property relevant to medical diagnosis?

Accepted Answer

The ability of hemoglobin to bind oxygen

Question 11

A student dissolves sugar in water. What type of change is this?

Accepted Answer

Physical change

Question 12

Which of the following is classified as a compound?

Accepted Answer

Water ($$\mathrm{H_2O})$$

Question 13

Which of the following is NOT a physical property?

Accepted Answer

Ability to react with acid

Question 14

Which of the following best describes the composition of air?

Accepted Answer

Homogeneous mixture

Question 15

A sample of matter is placed in a container and takes the shape of the container but maintains a constant volume. What state of matter is this?

Accepted Answer

Liquid

Question 16

Which of the following is an example of a heterogeneous mixture found in everyday life?

Accepted Answer

Pizza

Question 17

Which process describes the change from gas to liquid?

Accepted Answer

Condensation

Question 18

Which of the following statements about elements is correct?

Accepted Answer

Elements are pure substances consisting of only one type of atom

Question 19

Which of the following is a chemical change that occurs in the human body?

Accepted Answer

Digestion of food

Question 20

A mixture that has a uniform composition throughout is called:

Accepted Answer

Homogeneous mixture

Chapter 1: Matter & Measurements – Foundations of Chemistry

Guida di studio - Domande di pratica