Aqueous Solutions Quiz
Over TEKS 10A & 10B
- 1.Why does water have unique characteristics compared to other similar molecules?
- A.
Water molecules have strong intermolecular attractions.
- B.
Water molecules have very high viscosity.
- C.
Water molecules exist in aqueous solution.
- D.
Water has a very low specific heat and is nonpolar.
- 2.Many substances are soluble in water. Which property of water makes this possible?
- A.
Water can dissolve a wide variety of substances
- B.
Water has the ability to cleanse itself through the water cycle
- C.
Water dissolves easily in the air, creating humidity
- D.
Water is found in large quantities around the world
- 3.The chemical equations for photosynthesis and respiration are provided: Photosynthesis: 6 CO2 + 6 H2O → C6H12O6 + 6 O2 Respiration: C6H12O6 + 6 O2 → 6 CO2 + 6 H2O Water is among the chemicals in both of these equations. Based on this information, why is it important that plants have water available in their environment?
- A.
Plants need water for respiration as well as glucose.
- B.
Plants need water in order to break down glucose for energy.
- C.
Plants use water to create energy in the form of glucose.
- D.
Plants clean water for other organisms in the environment.
- 4.The different combinations of cations and anions created by the student is recorded in the data table shown. Which statement below best predicts the solubility of each combination in water?
- A.
Combination #1 = soluble, Combination #2 = soluble
- B.
Combination #1 = insoluble, Combination #2 = soluble
- C.
Combination #1 = soluble, Combination #2 = insoluble
- D.
Combination #1 = insoluble, Combination #2 = insoluble
- 5.Which statement below is generally true regarding factors that affect the solubility of solids in water?
- A.
As the pressure increases, the solubility decreases.
- B.
As the pressure increases, the solubility increases.
- C.
Ions with greater charge are more soluble in water.
- D.
Nonpolar solids are more soluble in water than polar solids.
- 6.Water exhibits a unique property of surface tension. What happens among the water molecules to cause this property to occur?
- A.
The water molecules begin to spread out rapidly near the surface of the water.
- B.
The water molecules are nonpolar and repel each other near the surface of the water.
- C.
The water molecules are strongly attracted to each other through hydrogen bonding.
- D.
The water molecules do not move very quickly near the surface of the water.
Questions: 9 | Attempts: 7725 | Last updated: Jun 22, 2020
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