25-26 8th Unit 1 Test Retake Properties of Matter

1

Which of the following statements is TRUE?

Atoms can be broken down into smaller particles by chemical means.

An element is made up of only one type of atom.

The periodic table organizes elements by their reactivity.

Non-metals are usually found on the left-hand side of the periodic table.

S.8.6.A

1

Which of the following is a compound?

A mixture of iron filings and sulfur powder.

Pure gold.

Water (H₂O).

Nitrogen gas (N₂₎.

S.8.6.A

1

Imagine a beaker containing only oxygen molecules (O₂). What type of substance is in the beaker?

A compound

A mixture of elements

An element

A mixture of compounds

S.8.6.A

1

Why can a mixture of sand and water be separated by filtration, but the hydrogen and oxygen in water cannot?

Because sand and water are both solids.

Because hydrogen and oxygen are gases.

Because sand and water are physically mixed, while hydrogen and oxygen are chemically bonded in water.

Because filtration only works for elements, not compounds.

S.8.6.A

1

Which water property is shown in the image above?

S.8.6.C

2

The hydrogen bond between the 2 water molecules is an example of _____, while the hydrogen bond between a water and another molecules (like the sides of the tube shown in the diagram) is an example of _

S.8.6.C

Obavezno

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

Both acids and bases have pH greater than 7

Both acids and bases have pH less than 7

S.8.6.D

1

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

adhesion; specific heat

surface tension; cohesion

this is a false statement

cohesion; universal solvent

S.8.6.C

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

water sticks to the walls of blood vessels

S.8.6.C

1

What paper is commonly used to measure pH levels?

pH paper

PTC paper

Acid Paper

Base Paper

S.8.6.D

1

What would a substance with a pH of 11 most likely taste like?

Bitter taste

No taste

Sour taste

Sweet taste

S.8.6.D

1

What color does litmus paper turn in an acid?

Blue

Red

Green

Yellow

S.8.6.D

4

A student uses pH paper to test four common household substances. The results show that lemon juice has a pH of 3, soap solution has a pH of 10, pure water has a pH of 7, and vinegar has a pH of 2. Based on these results, identify which substances are acids, which ones are a base, and which ones are neutral.

S.8.6.D

25-26 8th Unit 1 Test Retake Properties of Matter

Which of the following statements is TRUE?

Which of the following is a compound?

Imagine a beaker containing only oxygen molecules (O2). What type of substance is in the beaker?

Why can a mixture of sand and water be separated by filtration, but the hydrogen and oxygen in water cannot?

Which water property is shown in the image above?

The hydrogen bond between the 2 water molecules is an example of _________________, while the hydrogen bond between a water and another molecules (like the sides of the tube shown in the diagram) is an example of _____________

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

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

Which of the following scenarios is an example of cohesion

What paper is commonly used to measure pH levels?

What would a substance with a pH of 11 most likely taste like?

What color does litmus paper turn in an acid?

Which of the following statements is TRUE?

Which of the following is a compound?

Imagine a beaker containing only oxygen molecules (O2). What type of substance is in the beaker?

Why can a mixture of sand and water be separated by filtration, but the hydrogen and oxygen in water cannot?

Which water property is shown in the image above?

The hydrogen bond between the 2 water molecules is an example of _________________, while the hydrogen bond between a water and another molecules (like the sides of the tube shown in the diagram) is an example of _____________

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

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

Which of the following scenarios is an example of cohesion

What paper is commonly used to measure pH levels?

What would a substance with a pH of 11 most likely taste like?

What color does litmus paper turn in an acid?

Imagine a beaker containing only oxygen molecules (O₂). What type of substance is in the beaker?

The hydrogen bond between the 2 water molecules is an example of _____, while the hydrogen bond between a water and another molecules (like the sides of the tube shown in the diagram) is an example of _

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

Imagine a beaker containing only oxygen molecules (O₂). What type of substance is in the beaker?

The hydrogen bond between the 2 water molecules is an example of _____, while the hydrogen bond between a water and another molecules (like the sides of the tube shown in the diagram) is an example of _

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