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Author Question: Each circle represents an atom. Which of the following boxes contains an element? A compound? A ... (Read 40 times)

SO00

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on: Jul 29, 2018
Each circle represents an atom. Which of the following boxes contains an element? A compound? A mixture?
 
  A) element: A, C; compound: A, B, C; mixture: A, B
  B) element: C; compound: A, B; mixture: B
  C) element: A, C; compound: A, B; mixture: A
  D) element: A, C; compound: A, B; mixture: A, B

Question 2

Mixtures can be separated into their components by taking advantage of differences in the chemical properties of the components.
 
  Why might this separation method be less convenient than taking advantage of differences in the physical properties of the components?
  A) A chemical property involves a chemical change so that you no longer have what you had.
  B) Chemical properties are not as apparent as are physical properties.
  C) The chemical properties of the components of a mixture are too similar to each other.
  D) The chemical properties of the components of a mixture are too different from each other.


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peilian

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: A


SO00

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Reply 2 on: Jul 29, 2018
Excellent

shailee

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Reply 3 on: Yesterday
:D TYSM

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