Chemistry II Unit 7 Review

What is the definition of solubility?

• The ability of a substance to dissolve in another substance
• The ability of a substance to react with another substance
• The ability of a substance to change its state from solid to liquid
• The ability of a substance to change its color when heated

What is a solute?

• A type of musical instrument

• A substance that is dissolved in a solution

• A mathematical solution
• A type of physical exercise

What is a solvent?

• A substance that reacts with a solute

• A substance that cannot be dissolved
• A substance that it dissolves in usually water

• A substance that is insoluble in water

If something is soluble in another substance it ____.

If something is NOT soluble in a substance it does NOT _____.

How many grams of K₂Cr₂O₇, are soluble in 100 g of water at 95 ºC?

• 83 grams
• 75 grams
• 40 grams
• 12 grams

25 grams of NaCl are dissolved in 100 mL of water at 60 ^oC. How many more grams need to be dissolved for the solution to be saturated?

• 13 grams

• 25 grams

• 6 grams

• 38 grams

Tags

NGSS.HS-PS3-4

NGSS.HS-PS1-5

How many grams of K₂Cr₂O₇, are soluble in 100 g of water at 90 ºC?

• 85 grams

• 70 grams

• 40 grams

• 15 grams

Tags

NGSS.HS-PS3-4

How many grams of K₂Cr₂O₇, are soluble in 50 g of water at 90ºC?

• 70 grams

• 35 grams

• 140 grams

• 105 grams

Tags

NGSS.HS-PS3-4

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated