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Author Question: Calcite and quartz are minerals. What properties do they have in common? How do they differ? What ... (Read 108 times)

nummyann

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on: Jul 16, 2018
Calcite and quartz are minerals. What properties do they have in common? How do they differ?
 
  What will be an ideal response?

Question 2

Which of the following statements about abortion is true?
 
  A) Abortion is encouraged by the United Nations as part of its policy on family planning.
  B) Abortion remains the most effective way for people in developed nations to limit family size.
  C) Abortion is rarely performed in developing countries because of the lack of medical care.
  D) Abortion would be less common if family planning services were more widely available.


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Cheesycrackers

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Common
Transparent
Six-sided crystals
Shiny, glass-like luster
Density
Different
Different shapes of their crystal faces
Different hardness
Calcite has three directions of cleavage, quartz has none
They have different chemical formulas

Answer to Question 2

D


nummyann

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Reply 2 on: Jul 16, 2018
Gracias!

juliaf

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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