$$d = \frac{12.0\,g}{2.00\,cm \times 2.00\,cm \times 2.00\,cm} = 1.50\,g/cm^3$

$$0.00348 \times 10^6$ = 3480\,cm^3$

Question 1

Which of the following statements best describes an intensive property?

Accepted Answer

A property that is independent of the sample size.

Question 2

A cube has edges of 2.00 cm and a mass of 12.0 g. What is its density?

Accepted Answer

$$d = \frac{12.0\,g}{2.00\,cm 	imes 2.00\,cm 	imes 2.00\,cm} = 1.50\,g/cm^3$

Question 3

Which of the following is a strong electrolyte when dissolved in water?

Accepted Answer

NaCl

Question 4

What is the oxidation state of sulfur in SO$$_4$$^{2-}$$?

Accepted Answer

$$+6$$

Question 5

Which of the following is a chemical change?

Accepted Answer

Rusting of iron

Question 6

Convert 0.00348 m$$^3 to cm$^3.$$

Accepted Answer

$$0.00348 	imes 10^6$ = 3480\,cm^3$

Question 7

Which of the following compounds is a molecular compound?

Accepted Answer

CO$$_2$$

Question 8

What is the empirical formula of a compound that is 80.0% carbon and 20.0% hydrogen by mass?

Accepted Answer

CH$$_2$$

Question 9

Which of the following is a heterogeneous mixture?

Accepted Answer

Sand and iron filings

Question 10

A solution is prepared by dissolving 5.0 g of NaCl in 100 g of water. Which is the solute?

Accepted Answer

NaCl

Question 11

Which of the following is the correct formula for calculating density?

Accepted Answer

$$d = \frac{m}{V}$$

Question 12

What is the correct name for FeCl$$_3$$?

Accepted Answer

Iron(III) chloride

Question 13

Which of the following is a weak electrolyte?

Accepted Answer

CH$$_3$$COOH

Question 14

Which of the following is a physical property?

Accepted Answer

Density

Question 15

What is the oxidation state of oxygen in H$$_2O$_2$$?

Accepted Answer

$$-1$$

Question 16

Which of the following is the correct conversion factor to change meters to centimeters?

Accepted Answer

$$1\,m = 100\,cm$$

Question 17

Which of the following is a binary acid?

Accepted Answer

HCl

Question 18

Which of the following is the correct formula for converting Celsius to Kelvin?

Accepted Answer

$$K = ^\circ C + 273.15$$

Question 19

Which of the following is a compound?

Accepted Answer

NaCl

Question 20

Which of the following is a homogeneous mixture?

Accepted Answer

Salt water

General Chemistry I: Fundamental Concepts and Applications

Guida di studio - Domande di pratica