Question 1

Which of the following best describes an extensive property?

Accepted Answer

It is a property that depends on the amount of substance present.

Question 2

A student is given a sample of titanium (Ti) metal with a mass of 100 g. If the density of Ti is $$4.50\ \mathrm{g/cm^3$}$$, what is the volume of the sample in $$\mathrm{cm^3$}$$?

Accepted Answer

$$22.2\ \mathrm{cm^3$}$$

Question 3

Which of the following changes is a chemical change?

Accepted Answer

Metabolism of food in the body

Question 4

Which SI unit is used to measure luminous intensity?

Accepted Answer

candela

Question 5

A mixture is defined as:

Accepted Answer

A substance composed of multiple types of particles

Question 6

Which metric prefix corresponds to a factor of $$10^{-6}$$?

Accepted Answer

micro

Question 7

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

Accepted Answer

Salt dissolved in water

Question 8

What is the derived SI unit for pressure?

Accepted Answer

$$\mathrm{kg\ m$$^{-1}$$\ s$$^{-2}$$} ($$Pascal, Pa)

Question 9

A sample has a density of $$1.38\ \mathrm{g/cm^3$}. Is $$density an extensive or intensive property?

Accepted Answer

Intensive

Question 10

Which of the following best represents a mixture of hydrogen and oxygen gas, given that red spheres are oxygen atoms and white spheres are hydrogen atoms?

Accepted Answer

A box containing only red spheres paired together and white spheres paired together

Question 11

Which of the following is a derived SI unit?

Accepted Answer

Pascal (Pa)

Question 12

If you have $$10\ \mathrm{kg} of $$titanium (Ti) with a density of $$4.50\ \mathrm{g/cm^3$}$$, what is the volume in liters?

Accepted Answer

$$2.22\ \mathrm{L}$$

Question 13

Which of the following is NOT a fundamental SI unit?

Accepted Answer

joule

Question 14

Which of the following statements about physical and chemical changes is correct?

Accepted Answer

Physical changes alter only the state or appearance, not composition.

Question 15

Which of the following is an example of an element?

Accepted Answer

Oxygen gas ($$\mathrm{O_2$})$$

Question 16

Which SI unit is used to measure electric current?

Accepted Answer

ampere

Question 17

A compound is defined as:

Accepted Answer

A substance whose constituent particles are molecules/ions with multiple types of atoms

Question 18

Which of the following is the correct SI prefix for $$10^3$$?

Accepted Answer

kilo

Question 19

Which of the following is a heterogeneous mixture?

Accepted Answer

Sand and iron filings

Question 20

Which of the following is the correct derived SI unit for energy?

Accepted Answer

$$\mathrm{kg\ m^2$\ s$$^{-2}$$} ($$Joule, J)

Introduction to General Chemistry: Matter, Measurement, and Problem Solving

Guida di studio - Domande di pratica

Study guide - Flashcard