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Author Question: The prefix mega means ________. A) 10-6 B) 10-3 C) 103 D) ... (Read 63 times)

bobbysung

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on: Aug 27, 2018
The prefix mega means ________.
 
  A) 10-6
  B) 10-3
  C) 103
  D) 106

Question 2

Which of the following has 6 as one of the coefficients when the equation is balanced?
 
  A) H2SO4 + Al(OH)3  Al2(SO4)3 + H2O
  B) C2H6O +O2  CO2 + H2O
  C) Mg + HCl  H2 + MgCl2
  D) Al(OH)3 + HCl  AlCl3 + H2O

Question 3

If 30 grams of sodium chloride are added to 100 mL of water, will the resulting volume of the solution be less than, exactly, or greater than 100 mL?
 
  What will be an ideal response?


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polinasid

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

D

Answer to Question 2

A

Answer to Question 3

A solution made in this way will have a total volume greater than the volume of the water initially (>100 mL).


bobbysung

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Reply 2 on: Aug 27, 2018
Gracias!

cam1229

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Reply 3 on: Yesterday
Wow, this really help

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