Science

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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

  • Science -

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

  • Science -

    Nickel and saltwater.

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

  • Science -

    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 !

  • You Dont Need ---- Please do not answer if you have no idea -

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

  • Science -

    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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