Express the product of 4.0 × 10-2 m and 8.1 × 102 m using the correct number of significant digits.
A. 3.2 × 101
B. 3.24 × 101
C. 32.4
D. 30

C. 32.4 is the answer

Expert answered|migzptz|Points 2360|

Question

Asked 9/30/2011 1:11:10 PM

0 Answers/Comments

Rating

There are no new answers.

the closeness of a measurement to its actual value is a measure of its? A. precision B. accuracy. **Weegy:** The closeness of a measurement to its actual value is a measure of its B. accuracy. (More)

Question

Expert Answered

Asked 9/30/2011 12:09:10 PM

0 Answers/Comments

Express the sum of 5762.7 and 67.2 to the correct number of significant digits.
A. 5829.9
B. 5830
C. 583 × 101
D. 5.83 × 103 **Weegy:** hello is a=5829,9 **User:** you're sure? **Weegy:** yes success **User:** alright thank you **Weegy:** o.k my thank (More)

Question

Expert Answered

Asked 9/30/2011 12:41:38 PM

0 Answers/Comments

Express the sum of 2222 km and 333 km using the correct number of significant digits.
A. 2500 km
B. 2550 km
C. 2550. km
D. 2555 km **Weegy:** Express the sum of 2222 km and 333 km using the correct number of significant digits. D. 2555 km **User:**
Express the sum of 5762.7 and 67.2 to the correct number of significant digits.
A. 5829.9
B. 5830
C. 583 × 101
D. 5.83 × 103 **Weegy:** How many significant figures are you meant to be rounding to? (More)

Question

Expert Answered

Asked 9/30/2011 12:36:44 PM

0 Answers/Comments

Sulfur dioxide is _____ compound.
A. not a
B. an ionic
C. a diatomic
D. a molecular **Weegy:** D. a molecular
(More)

Question

Expert Answered

Asked 9/30/2011 2:52:57 PM

0 Answers/Comments

In which of the following is number of electrons the ion contains given correctly?
A. H+ has 1 electron.
B. Br- has 34 electrons.
C. Al3+ has 16 electrons.
D. Ca2+ has 18 electrons.

Question

Not Answered

Updated 10/1/2011 2:44:26 PM

1 Answer/Comment

21,510,730 questions answered

There are no comments.