{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

1

What percentage of the Earth is covered in water?

1

What does turbidity of water measure?

the salinity of water

the clarity of water

1

In a water molecule, the oxygen atom is

positively charged

Negatively charged

1

What is cohesion?

Ability for water molecules to "stick" to other water molecules

Molecules in liquid water are closer together than they are in solid water

1

The primary contributor to the salinity of saltwater is

NaCl

NaOH

1

What is adhesion?

Ability for water molecules to "stick" to other water molecules

Ability for water molecules to "stick" to other types of molecules

1

What percentage of freshwater is readily available for consumption?

3%

0.3%

1

What percentage of all the water on Earth is freshwater?

97%

3%

1

Why does ice (solid water) float in liquid water?

Solid water is more dense than liquid water

Solid water is less dense than liquid water

1

Because water is able to dissolve most things, it is known as the

1

Which of the following scenarios is an example of cohesion

water molecules stick to the surface of a mirror

water molecules stick to one another and form a bead

1

The specific heat capacity of water is

high

low

1

Saltwater freezes at

the same temperature as freshwater

colder temperature than freshwater

1

Certain insects can "walk on water" due to the _ of water, created by .

adhesion; specific heat

surface tension; cohesion

1

How many hydrogen atoms does each water molecule have?

2

3

1

What property allows water to stick to glass ?

Adhesion

Cohesion

1

Which of the following is more electronegative (has more of the negative charge) in a water molecule?

Oxygen

Hydrogen

1

Numbers higher than a 7.1 on the pH scale are a(n)

acidic

basic/alkaline

1

The pH of pure water is

14

7

1

Maria, after finding no cold sodas in the refrigerator, placed a can of soda in the freezer. She then proceeded to check her social networking site and forgot about the soda. Later that evening her brother went to get some ice and it was brown. Maria’s soda can had split open. What is the best explanation for what happened?

As the water cooled, it adhered to the can, causing it to split

When the water froze, the space between the water molecules expanded making it less dense

1

Water molecules are polar.
This means...

oxygen side is a little negative and the hydrogen side is a little positive.

oxygen and hydrogen sides are both a little positive.

1

Which is the strongest base?

Hydrochloric acid

Sodium hydroxide

1

What is the charge on the hydrogen end of the molecule shown in the picture?

slightly positive (+)

slightly negative (-)

1

According to the picture, how cold is the air temperature?

0 C

4 C

1

According to the picture, how cold is the water temperature?

0 C

4 C

1

In a water molecule, the angle between the hydrogen atoms is how many degrees?

1

Brackish water has a higher salinity than saltwater.

Nokorɛ

Ɛnyɛ ampa

1

Which of the following is true about the pH levels of acids and bases?

Acids have pH greater than 7, bases have pH less than 7

Acids have pH less than 7, bases have pH greater than 7

Unit 1 Properties of Water Test - version B

Unit 1 Properties of Water Test - version B

What percentage of the Earth is covered in water?

What does turbidity of water measure?

In a water molecule, the oxygen atom is

What is cohesion?

The primary contributor to the salinity of saltwater is

What is adhesion?

What percentage of freshwater is readily available for consumption?

What percentage of all the water on Earth is freshwater?

Why does ice (solid water) float in liquid water?

Because water is able to dissolve most things, it is known as the

Which of the following scenarios is an example of cohesion

The specific heat capacity of water is

Saltwater freezes at

Certain insects can "walk on water" due to the _______ of water, created by ______.

How many hydrogen atoms does each water molecule have?

What property allows water to stick to glass ?

Which of the following is more electronegative (has more of the negative charge) in a water molecule?

Numbers higher than a 7.1 on the pH scale are a(n)

The pH of pure water is

Water molecules are polar. This means...

Which is the strongest base?

What is the charge on the hydrogen end of the molecule shown in the picture?

According to the picture, how cold is the air temperature?

According to the picture, how cold is the water temperature?

In a water molecule, the angle between the hydrogen atoms is how many degrees?

Brackish water has a higher salinity than saltwater.

Which of the following is true about the pH levels of acids and bases?

What percentage of the Earth is covered in water?

What does turbidity of water measure?

In a water molecule, the oxygen atom is

What is cohesion?

The primary contributor to the salinity of saltwater is

What is adhesion?

What percentage of freshwater is readily available for consumption?

What percentage of all the water on Earth is freshwater?

Why does ice (solid water) float in liquid water?

Because water is able to dissolve most things, it is known as the

Which of the following scenarios is an example of cohesion

The specific heat capacity of water is

Saltwater freezes at

Certain insects can "walk on water" due to the _______ of water, created by ______.

How many hydrogen atoms does each water molecule have?

What property allows water to stick to glass ?

Which of the following is more electronegative (has more of the negative charge) in a water molecule?

Numbers higher than a 7.1 on the pH scale are a(n)

The pH of pure water is

Water molecules are polar. This means...

Which is the strongest base?

What is the charge on the hydrogen end of the molecule shown in the picture?

According to the picture, how cold is the air temperature?

According to the picture, how cold is the water temperature?

Where is it warmer in the picture?

How does the layer of ice at the surface affect the water and the fish below the surface?

In a water molecule, the angle between the hydrogen atoms is how many degrees?

Brackish water has a higher salinity than saltwater.

Which of the following is true about the pH levels of acids and bases?

Where is it warmer in the picture?

How does the layer of ice at the surface affect the water and the fish below the surface?

Certain insects can "walk on water" due to the _ of water, created by .

Water molecules are polar.
This means...

Certain insects can "walk on water" due to the _ of water, created by .

Water molecules are polar.
This means...