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Author Question: The numbers in front of the formulas in a chemical equation are referred to as a) subscripts. b) ... (Read 76 times)

yoooooman

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on: Jul 28, 2018
The numbers in front of the formulas in a chemical
  equation are referred to as
  a) subscripts.
  b) superscripts.
  c) coefficients.
  d) common denominators.

Question 2

A 4.0-kg mass has a velocity of 4.0 m/s, east when it explodes into two 2.0-kg masses. After the explosion one of the masses has a velocity of 3.0 m/s at an angle of 60 north of east. What is the magnitude of the velocity of the other mass after the explosion?
 a. 7.9 m/s
  b. 8.9 m/s
  c. 7.0 m/s
  d. 6.1 m/s
  e. 6.7 m/s


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xthemafja

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Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

c


yoooooman

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Reply 2 on: Jul 28, 2018
Gracias!

amit

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Reply 3 on: Yesterday
Wow, this really help

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