This topic contains a solution. Click here to go to the answer

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

yoooooman

  • Hero Member
  • *****
  • Posts: 557
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



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xthemafja

  • Sr. Member
  • ****
  • Posts: 348
Answer to Question 1

c

Answer to Question 2

c




yoooooman

  • Member
  • Posts: 557
Reply 2 on: Jul 28, 2018
Gracias!


amit

  • Member
  • Posts: 364
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

For a complete list of videos, visit our video library