Biology Review by Bry

Biology Review by T Bry Part 2

Multiple Choice

An ionic bond forms when atoms ___________ electrons.

• gain
• share
• increase
• transfer

Multiple Choice

Which type of bond has an unequal sharing of electrons?

• Polar Covalent 
• Non Polar Covalent
• Ionic
• Metallic

Multiple Choice

Which type of bond has a transfer of an electron from on atom to another?

• Polar Covalent 
• Non Polar Covalent
• Ionic
• Metallic

Multiple Choice

The property where water can dissolve almost all substances on Earth.

• adhesion
• capillary action
• cohesion
• universal solvent

Multiple Choice

How many hydrogen atoms are in one molecule of water?

• 1
• 2
• 3
• 4

Multiple Choice

Which letter represents hydrogen?

• A
• B
• C
• D

Multiple Choice

Which letter represents oxygen?

• A
• B
• C
• D

Multiple Choice

Hydrogen bonding occurs because of the ____ between the positive hydrogen and the negative oxygen

• attraction

• repulsion

Multiple Choice

What is the chemical formula for water?

• 2HO
• H2O
• HO2
• H2O2

Multiple Choice

Which of the following is an example of COHESION?

• water sticking to water

• water sticking to glass

• oil sticking to plastic

• hydrogen sticking to oxygen

Multiple Choice

Oil and water don't mix because oil is

• hydrophilic

• hydrophobic

• an emulsifier

• a buffer

Multiple Choice

Capillary action is....

• adhesion

• cohesion

• change in matter (heat of fusion)

• both adhesion and cohesion

Multiple Choice

The attraction between water molecules is ___.

• adhesion

• cohesion

Multiple Choice

The reason water sticks to your skin is ___.

• adhesion

• cohesion

Multiple Choice

The reason water beads up on a freshly waxed car is due to ___.

• adhesion

• cohesion

Multiple Select

An ion is a ____.

• charged particle

• charged molecule

• nonpolar particle

• nonpolar molecule

Multiple Choice

Salt has Solubility because it dissolves in water.

• True

• False

Multiple Choice

What is Solubility?

• If something dissolves in water

• If something sinks in water

• If something floats in water

• None of the above

Multiple Choice

Water's high boiling point is due to ___.

• hydrogen bonds

• it's polarity

• being nonpolar

Multiple Select

A high specific heat means water ____. (select all that are true)

• takes a long time to change temperature.

• takes a lot of heat to increase temperature.

• holds a lot of heat.

• is good at regulating Earth's temperature.

Multiple Choice

When a solid becomes a liquid the ___ point is reached.

• melting

• boiling

Multiple Choice

True or False: The boiling point must be reached for liquid to become gas.

• true

• false

Multiple Choice

Because solid water is less dense than liquid water, ___ floats.

• solid water

• liquid water