Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
Related questions
Question
100%
For Q7. I am confused on why the answer Is 39 instead of 39.11. Please help
![Q3. How many significant figures are in the number 0.00620?
(a) 2
(b) 3
100,00 (c) 4
(d) 5
Q
Q4. Round the number 89.04997 to three significant figures.
(a) 89.03 (b) 89.04 (c) 89.1
(d) 89.0
Q5. Perform this multiplication to the correct number of sig-
nificant figures: 65.2 x 0.0015 × 12.02
(a) 1.17 (b) 1.18
(c) 1.2
(d) 1.176
Q6. Perform this addition to the correct number of significant
figures: 8.32 + 12.148 +0.02
(a) 20.488 (b) 20.49
(c) 20.5
(d) 21
Q7. Perform this calculation to the correct number of
significant figures: 78.222 x (12.02 - 11.52)
(a) 39
(b) 39.1
(c) 39.11
(d) 39.111
Q8. Convert 76.8 cm to m.
(a) 0.0768 m
(c) 0.768 m.
Q9. Convert 2855 mg to kg.
(a) 2.855 x 10-3 kg
(b) 2.855 kg
(c) 0.02855 kg
(d) 3.503 x 104 kg
Chemical Principles
(b) 7.68 m
(d) 7.68 x 10-2 m
Jour
P:91 'e:gt 'q:1 'e](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F538f3e83-7f0d-4c1a-a688-bdf41958b228%2F365b88bf-49ad-4a48-acc1-b30659efb972%2Ft3y5woe_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q3. How many significant figures are in the number 0.00620?
(a) 2
(b) 3
100,00 (c) 4
(d) 5
Q
Q4. Round the number 89.04997 to three significant figures.
(a) 89.03 (b) 89.04 (c) 89.1
(d) 89.0
Q5. Perform this multiplication to the correct number of sig-
nificant figures: 65.2 x 0.0015 × 12.02
(a) 1.17 (b) 1.18
(c) 1.2
(d) 1.176
Q6. Perform this addition to the correct number of significant
figures: 8.32 + 12.148 +0.02
(a) 20.488 (b) 20.49
(c) 20.5
(d) 21
Q7. Perform this calculation to the correct number of
significant figures: 78.222 x (12.02 - 11.52)
(a) 39
(b) 39.1
(c) 39.11
(d) 39.111
Q8. Convert 76.8 cm to m.
(a) 0.0768 m
(c) 0.768 m.
Q9. Convert 2855 mg to kg.
(a) 2.855 x 10-3 kg
(b) 2.855 kg
(c) 0.02855 kg
(d) 3.503 x 104 kg
Chemical Principles
(b) 7.68 m
(d) 7.68 x 10-2 m
Jour
P:91 'e:gt 'q:1 'e
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