SUPPLEMENT 2

Which of the following is not soluble in water?

• moth balls

• salt

• sugar

• vinegar

Which of the following liquids do not mix with water?

• liquid soap

• oil

• soy sauce

• vinegar

In solution, the additive is called the ____________, while the substance that dissolve the first is called the ________________?

• solute;solvent

• solvent;solute

• seasoning;water

• solubility;concentration

Solubility is measured in terms of ___________________.

• How much solute is actually dissolved in the solvent

• how much solvent is actually dissolved in the solute

• how much solute can be dissolved in a fixed amount of solvent

• how much solvent can be dissolved in a fixed amount of solute

Which of the following salt solutions is the most concentrated?

• 20 grams of salt dissolved in 100 mL of water

• 30 grams of salt dissolved in 100 mL of water

• 30 grams of salt dissolved in 200 mL of water

• 50 grams of salt dissolved in 200 mL of water

How much alcohol is in 250 mL of 40% solution?

• 25 mL

• 40 mL

• 100 mL

• 150 mL

What will be the resulting concentration if 100 mL of water is added to 100 mL of 70 % alcohol solution?

• 70 % alcohol solution

• 100 % alcohol solution

• 60 % alcohol solution

• 35 % alcohol solution