Water and Chemical Solutions PRACTICE QUIZ

How many Hydrogen atoms does a single water molecule have?

• 1
• 2
• 3
• 4

What does "polar" mean?

• A molecule is cold
• A molecule has ionic bonds
• A molecule has covalent bonds
• A molecule has areas of positive and negative charge

This atom in a water molecule has more of a negative charge

• Oxygen
• Hydrogen

Salt dissolves in water because

• The water molecules wiggle between the Na and Cl atoms
• Water gets warm and moves around too much
• The polar areas of water molecules stick to the Na and CL ions

When two substances are mixed, the substance that is dissolved is called the:

• solvent
• solute

When two substances are mixed, the substance that does the dissolving is the:

• solvent
• solute

True or false: Sucrose (sugar) is a polar molecule like water

• True
• False

True or false: Each substance dissolves in water differently, depending on its atoms and bonds

• True
• False

Water is the universal solvent since it's:

• water
• such a small molecule 
• polar
• essential to life

What is the property of water that allows it to stick to other water molecules?

• Capillary Action
• Solubility
• Adhesion
• Cohesion