Solubility Curves, Water and Solutions

Multiple Choice

Water is cohesive and sticks to other water molecules. How does water stick to other water molecules?

• A positively charged hydrogen of one water molecule bonds to the negatively charged oxygen of another water molecule

• A negatively charged hydrogen of one water molecule bonds to the positively charged oxygen of another water molecule.

• The oxygen of one water molecule bonds to the oxygen of another water molecule

• A hydrogen of one water molecule bonds to a hydrogen of another water molecule

Multiple Choice

Why is water polar?

• There are no charges on either end of a water molecule

• The electrons are evenly distributed

• The electrons are unevenly distributed

• Water is a covalent bond sharing the electrons between hydrogen and oxygen equally.

Multiple Choice

Which diagram shows the correct distribution of charges in a water molecule?

Open Ended

In the diagram to the left, identify the atoms of the water molecule - A and B. What is C?

Multiple Choice

The property of water that allows insects to walk on its surface is :

• Surface tension due to adhesion

• Surface tension due to the polarity of water

• Surface tension due to cohesion

• Surface tension due to solubility of water

Open Ended

Frozen water (ice) is less dense than liquid water. Explain what causes ice to be less dense than liquid water? Type your response below

Multiple Select

Ionic compounds can dissolve in water. Which of the following substance(s) below is/are ionic? Choose ALL correct responses

• NaF

• H₂O

• NH₃

• MgSO₄

Multiple Select

Which of the following compounds will dissolve in water as shown in the diagram to the left? Select ALL that apply

• NaF

• H₂O

• NH₃

• MgSO₄

Open Ended

Explain how the solubility of the two gasses shown in the chart to the left changes as the temperature increases?

Video Response

Write three things you learned about solubility from the video

Open Video Recorder

Multiple Choice

At 40⁰C, how much potassium nitrate can be dissolved in 300 g of water?

• 100g

• 122g

• 40g

• 43g

Multiple Choice

A saturated solution of potassium chlorate is formed from 100 grams of water. Is this solution saturated, unsaturated or supersaturated?

• Saturated

• Unsaturated

• Supersaturated

Open Ended

How will you determine whether the compound is a solid or gas from the solubility curve shown?

Open Ended

Identify and list all the compounds that are solids.

Open Ended

Identify and list all the compounds that are gasses