Chemistry Solutions

Raising solvent temperature causes solvent-solute collisions to become

• more frequent and less energetic
• more frequent and more energetic
• less frequent and less energetic
• less frequent and more energetic

Tags

NGSS.MS-PS1-4

Which of the following will dissolve most rapidly?

• sugar cubes in cold water
• sugar cubes in hot water
• powdered sugar in cold water
• powdered sugar in hot water

Tags

NGSS.MS-PS1-4

Increasing the surface area of the solute

• increases the rate of dissolution
• increases solubility
• decreases the rate of dissolution
• has no effect on the rate of dissolution

Water in air is an example of which solute-solvent combination?

• gas-liquid
• liquid-liquid
• gas-gas
• liquid-gas

Which mixture contains visible particles that settle out unless the mixture is stirred?

• a solution
• a colloid
• a suspension

If the amount of solute present in a solution at a given temperature is less than the maximum amount that can dissolve at that temperature, the solution is said to be

• supersaturated
• concentrated
• saturated
• unsaturated

Two immiscible substances are

• carbon tetrachloride and benzene
• water and ammonia
• water and ethanol
• benzene and water

When solutions of two ionic compounds are combined and solid forms, the process is called

• dissociation
• solvation
• hydration
• precipitation

Carbon dioxide dissolved in water is an example of which solute-solvent combination?

• cannot be determined
• gas-liquid
• liquid-gas
• liquid-liquid

The solubility of gases in liquids

• increases with increasing pressure
• cannot reach equilibrium
• does not depend on pressure
• decreases with increasing pressure