Final Exam Review_General Chemistry I

Aria, Aiden, and Isla are studying different states of matter. They observed that solids have a/an

• definite shape and are compressible

• indefinite shape and are incompressible

• definite shape and are incompressible

• sharp shape and are convertible

During a science experiment, Maya, Mia, and Isla were given different substances. Maya had liquid mercury, Mia had hydrogen gas, and Isla had a salt solution. Which one of these is an impure substance?

• liquid mercury (Maya's substance)

• hydrogen gas (Mia's substance)

• salt solution (Isla's substance)

• elemental gold

Which one of the following is an extensive property?

• temperature

• mass

• boiling point

• melting point

Oxygen is a __ and Gold is a __.

• nonmetal, metal

• metal, nonmetal

• metal, metal

• metalloid, nonmetal

How many Significant Figures does the number 6.0200 have?

• 1

• 2

• 4

• 5

• 3

Benjamin is conducting a chemistry experiment to create a salt by combining the ions Na⁺ and SO₄^2-. He needs to write the correct formula for the salt they form. What is the formula?

• Na₃(SO₄)₂

• Na₃SO₄

• Na₂SO₄

• NaSO₄

Priya is studying chemistry and comes across an isotope of an element. If the atomic number of this element is 17, what is the identity of the element?

• C

• Br

• Cl

• O

Arjun is a chemistry student who found a compound in his lab. The compound consists of 18.00% C, 2.27% H, and 79.73% Cl by mass. Ava and Michael are curious to know what is the empirical formula of this compound that Arjun found?

• CHCl₃

• C₂H₃Cl₃

• C₂H₃Cl

• C₂H₂Cl₃

• 3, 2, 2

• 1, 2, 1

• 1, 1, 1

• 1, 3, 2

• 13.5 kJ

• 43.0 kJ

• 11.3 kJ

• 7.22 kJ