Question

Just see if these are right.

Answer 1

Solutions

have a uniform composition and can be separated by physical means.

cannot be separated by physical means.

do not have a uniform composition.

none of the above.

Question 2 (Multiple Choice Worth 2 points)

Which of the following does not describe elements?

They are uniform throughout.

They can be separated by a chemical reaction.

They cannot be separated by physical means.

They are listed on the periodic table.

Question 3 (Multiple Choice Worth 2 points)

Oxygen, sulfur and tungsten are all examples of what type of matter?

Compound

Element

Heterogeneous Mixture

Solution

Question 4 (Multiple Choice Worth 2 points)

Which of the following is a solution?

Dirt

An Alloy

Wood

Plastic

Question 5 (Multiple Choice Worth 2 points)

Filtration, decantation, and evaporation are examples of

ways in which scientists distinguish between elements and compounds.

separation by chemical means.

separation by physical means.

ways in which scientists separate compounds.

Question 6 (Multiple Choice Worth 2 points)

Which of the following is a solution?

Steel

Milk

Plastic

Water

Question 7 (Multiple Choice Worth 2 points)

Compounds can be separated by

chemical means.

physical means.

boiling.

pressure.

Question 8 (Multiple Choice Worth 2 points)

Which of the following is an example of a heterogeneous mixture?

Water

Salt Water

Dirt

Brass

Answer 2

@SeaTurtle113

Answer 3

this is what i got:
1. A
2.B
3.B
4.B
5.C
6.A
7.B
8.D

Answer 4

is that right?

Answer 5

I believe all of these are correct except 7. Compounds can be separated by _____. The correct answer, I believe, would be chemical means or A.