Exploring Solubility and Intermolecular Forces

What is the primary reason a compound is called a salt in chemistry?

• It seasons food.

• It is always sodium chloride.

• It is used in cooking.

• It is made of ions and is neutral.

Why do sodium and chloride ions stick to each other strongly?

• Because they are both positive.

• Because they are both negative.

• Because one is positive and the other is negative.

• Because they are neutral.

What type of bonds are formed between water molecules?

• Metallic bonds

• Ionic bonds

• Covalent bonds

• Hydrogen bonds

What happens to sodium chloride when it is dissolved in water?

• It forms a solid.

• It disassociates into ions.

• It evaporates.

• It remains unchanged.

How does increasing the temperature affect the solubility of a solid solute in water?

• It increases solubility.

• It has no effect.

• It makes the solute evaporate.

• It decreases solubility.

Why does shaking a solution help dissolve more solute?

• It moves the molecules around, allowing more solute to fit in.

• It cools the solution.

• It increases the pressure.

• It decreases the kinetic energy.

What is the effect of temperature on the solubility of gases in liquids?

• Temperature increase raises solubility.

• Temperature increase lowers solubility.

• Temperature has no effect.

• Temperature decrease lowers solubility.

How does pressure affect the solubility of a gas in a liquid?

• Lower pressure increases solubility.

• Pressure has no effect.

• Higher pressure increases solubility.

• Higher pressure decreases solubility.

What is the natural state of most gases at room temperature?

• Solid

• Liquid

• Plasma

• Gas

What is the general rule of thumb for the solubility of solids and gases in liquids?

• Both increase with temperature.

• Both decrease with temperature.

• Solids increase and gases decrease with temperature.

• Solids decrease and gases increase with temperature.