This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Round the number 0.00637 to two significant figures. A) 0.0064 B) 0.006 C) 0.00637 D) 0.0 E) ... (Read 28 times)

mpobi80

  • Hero Member
  • *****
  • Posts: 519
on: Aug 27, 2018
Round the number 0.00637 to two significant figures.
 
  A) 0.0064
  B) 0.006
  C) 0.00637
  D) 0.0
  E) 0.0063700

Question 2

A sample of calcium carbonate CaCO3 (s) absorbs 40.3 J of heat, upon which the temperature of the sample increases from 20.8 C to 27.3 C. If the specific heat of calcium carbonate is 0.82 J/g-K, what is the mass (in grams) of the sample?
 
  A) 7.6 g
  B) 5.1 g
  C) -7.6 g
  D) 0.13 g
  E) 5.3 g


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bookworm410

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

A


mpobi80

  • Member
  • Posts: 519
Reply 2 on: Aug 27, 2018
Excellent

shewald78

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

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.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Inside Round Inside Round
The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ... The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ...
physics question number 5 - moving conductors physics question number 5 - moving conductors
A wrinkled and round garden pea, the phenotypic traits in one of Mendel’s monohybrid crosses A wrinkled and round garden pea, the phenotypic traits in one of Mendel’s monohybrid crosses
Number chart Number chart
Copy-number variants Copy-number variants
Video: Autonomic Nervous System Animation

For a complete list of videos, visit our video library