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Author Question: Which major division of chemistry deals specifically with the identification of the substances ... (Read 130 times)

jc611

  • Hero Member
  • *****
  • Posts: 552
on: Jul 28, 2018
Which major division of chemistry deals
  specifically with the identification of the substances
  present in a given sample of matter, and also with
  the determination of how much of each substance
  is present?
  a)biochemistry
  b)physical chemistry
  c)analytical chemistry
  d)organic chemistry

Question 2

A 10-g bullet moving horizontally with a speed of 1.8 km/s strikes and passes through a 5.0-kg block initially at rest on a horizontal frictionless surface. The bullet emerges from the block with a speed of 1.0 km/s. What is the kinetic energy of the block immediately after the bullet emerges?
 a. 8.0 J
  b. 6.4 J
  c. 5.3 J
  d. 9.4 J
  e. 10 J


swimkari

  • Sr. Member
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  • Posts: 332
Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

b


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