Chemistry Refresh: Building Blocks for Solutions

Which of the following is NOT a state of matter?

• Solid

• Liquid

• Plasma

• Energy

In gases, particles move faster and are farther apart than in liquids.

• True

• False

Which element has a larger atomic radius?

• Sodium (Na)

• Chlorine (Cl)

• Magnesium (Mg)

• Aluminum (Al)

Electronegativity increases as you move across a period from left to right.

• True

• False

What type of bond is formed when electrons are shared between atoms?

• Ionic

• Covalent

• Metallic

• Hydrogen

Name the weakest bond:

Which compound contains an ionic bond?

• H₂O

• NaCl

• CH₄

• O₂

According to Boyle’s Law, what happens to pressure when volume decreases (if temperature is constant)?

• Pressure decreases

• Pressure increases

• No change

• Pressure becomes zero

What is the solvent in a solution of saltwater?

• Salt

• Both salt and water

• Water

• None of the above

A homogeneous mixture has the same composition throughout.

• True

• False