# Science

posted by boooooooooooyyyyyyy

Which of the following is a pure substance? Choose all that apply. Choose 2.
A)Fruit juice?
B)nickel?
C)saltwater?
D)rust? (Fe2O3)

I think it is A and C

1. Steve

sorry. Neither one, if by "pure substance" you mean an element.

2. You Dont Need To Know My Duuuude

Nickel and saltwater.

Rust is made up of iron, copper, and trace amounts of gold. So it would be B and C.

3. Damon

Nickel is an element

Fruit juice = mixture
salt water = solution of NaCl and others in water
rust is a compound (oxide of iron) of iron and oxygen as they showed you Fe2O3 !

4. Damon

You have several really far out replies posted. Rusty Gold ????

5. DrBob222

Maybe I'm out of touch and need to go back to school.When I read this I consider rust (if Fe2O3) as a pure substance. Actually it isn't Fe2O3 either but a mixture of Fe2O3 and FeO. When I read nickel I read 5 cent piece and that isn't pure. I would chalk this up to a poorly worded question.

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