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Author Question: Which of the following is an example of physical change? A) Dew forms on a blade of grass. B) A ... (Read 70 times)

jessicacav

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on: Aug 27, 2018
Which of the following is an example of physical change?
 
  A) Dew forms on a blade of grass.
  B) A Halloween light stick glows after shaking.
  C) An egg solidifies during cooking.
  D) A hydrogen balloon explodes when contacted with a flame.
  E) An iron pipe rusts in the yard.

Question 2

What species is represented by the following information? p+ = 12 n = 14 e- = 10
 
  A) Si4+
  B) Mg
  C) Ne
  D) Si
  E) Mg2+

Question 3

Which of the following is a molecular element?
 
  A) Mg
  B) Ar
  C) Xe
  D) I
  E) Li


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abctaiwan

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Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

E

Answer to Question 3

D


jessicacav

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Reply #2 on: Aug 27, 2018
TY


abctaiwan

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Reply #3 on: Aug 27, 2018
You're welcome


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