Question

1. Which substance will result in a weak base?

A.
HCL

B.
HF

C.
KOH

D.
NH3

2. Heating a solvent _______ the energy of its particles, making them move faster on average, and ________ the rate at which a solid solute can dissolve in the solvent.

A.
decreases; decreases

B.
decreases; increases

C.
increases; decreases

D.
increases; increases

3.Which of the following will NOT increase the rate at which a solute dissolves in a solvent?

A.
increasing the temperature

B.
increasing the particle size of the solute

C.
increasing the surface area of the solute

D.
stirring the solvent

Answer 1

Answer:

1)A HCL

2)D increases and increases

3)C increasing the surface area of the solute