Question

Exam: 04.07 Mixtures and Solutions

Answer 1

Question 1 (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 2 (Multiple Choice Worth 2 points)

Which of the following is a solution?

Steel
Milk
Plastic
Water

Question 3 (Multiple Choice Worth 2 points)

If a substance is not able to be separated by physical means but is able to be separated by chemical means, it is a(n)

solution.
heterogeneous mixture.
element.
compound.

Question 4 (Multiple Choice Worth 2 points)

Which of the following are listed on the periodic table?

Compounds
Elements
Mixtures
Solutions

Question 5 (Multiple Choice Worth 2 points)

A bowl of trail mix and a bowl of soup are examples of what type of matter?

Solution
Heterogeneous Mixture
Element
Compound

Question 6 (Multiple Choice Worth 2 points)

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

Compound
Element
Heterogeneous Mixture
Solution

Question 7 (Multiple Choice Worth 2 points)

Bronze is an alloy, which is what form of matter?

Solution
Heterogeneous Mixture
Element
Compound

Question 8 (Multiple Choice Worth 2 points)

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 9 (Essay Worth 4 points)

Describe a procedure to separate a mixture of salt, sand, and water.






Question 10 (Essay Worth 2 points)

List two ways in which heterogeneous mixtures differ from elements.






Question 11 (Essay Worth 3 points)

How do scientists distinguish between an element and a compound? List two elements and two compounds.

Answer 2

@Xaze
@Anaise
@Ghostgate
i'll Give a medal

Answer 3

This seems more like Science than Writing, anyhow... I'll try to help as best as I can, don't take my notes or answers for granted though.
1. Well, evaporation is probably the only one I've heard of or remembered, anyhow, it is a form of change, this kind of concludes either B(separation by Chemical means) or C(separation by Physical means), what do you think it is?
2. If I recall correctly, a solution is kind of like a compound or mixture of things, so... since water and milk are natural, this leaves us with A(Steel) or C(Plastic). Which do you think it is?
3. I'm not too sure, I would say that it is either B(Heterogeneous mixture) or D(Compound).
4. Well, what are the things on the periodic table called? It is the "Periodic Table of ..."? It should be rather simple.
5. I would say A(Solution), because I believe that it is a solution, but I'm not sure.
6. I'm pretty sure they are B(Elements), after all they are all elements(I think, I'm not sure with that last one).
7. D(Compound) I believe.
8. A(Have a uniform composition and can be separated by physical means.) I think.
9. Well I can't really describe a separation of salt, sand, or water, I mean you can filter it out with a filter to separate these elements from water, but that's all I can think of.
10. I'm not sure what to say... I'm really sorry...
11. Well two elements, Copper(Cu) and Gold(Au), others include: Silver(Ag), Oxygen(O), etc. Anyhow, compounds? I'm pretty sure a compound would be like Water or perhaps Sodium Chloride(Salt) which would be: H2O and NaCI.
I hope this helps in someway! I'm sorry I couldn't have been more help, because my specialty is Math, not Science, English, or History. Anyhow, have a great day!
{---Ghostgate---}

Answer 4

seems like he took care of it -o-

Answer 5

Sorry, if you were going to reply to this. Lol - Here's a free medal. ;)

Answer 6

uh......oh well....actually I was just gonna not reply c:. You can take it back.

Answer 7

Oh, well it's fine, you can keep it. Lol