(a) Interpretation: ( 7.9 × 10 4 ) + ( 5.2 × 10 4 ) must be added using the correct number of significant figures in the answer. Concept Introduction: For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

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Answer 1

Question

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

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3:18 For each of the following, carry out the mathematical operation and report answers in scientific notation. X (a) (2.88 x 10¹) × (3.2 × 10-10) x 10 (select) (b) (6.1 × 107) ÷ (2.5 × 10-4) x 10 (select) (c) (2.2 × 10−7) ÷ (9.2 × 107) x 10 (select) ✓ (d) (7.6 × 10¹)³ × 10 (select) ✓ (e) (3.81 x 104) (9.8 x 105) X 10 (select) ✓ (ﬁ) (7.44 × 107 ) ÷ (2.46 × 10¯¹) × 10 (select) ✓ 2 of 78 Nex O M hp < Prev

( 5.31 × 10 8 ) + ( 6.53 × 10 7 )

Q1: Fill the below situations in the table Chemical change Physical change Melting of wax • Evaporation of alcohol • Burning a paper • Dissolving salt in water • Grinding a salt, then reacting it with another • Rusting of iron Q2: Find the answer according significant figures? • 1.00021+ 0.112 - 0.0032 • 10. × 15 2.07+0.031 7.001(1.9–0.04)

Answer 2

Question

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

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Answer 3

Question

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

Expert Solution & Answer

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Answer 4

Question

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

Expert Solution & Answer

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Answer 5

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

Answer 6

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Answer 7

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Answer 8

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Answer 9

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Answer 10

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

Answer 11

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

Answer 12

Expert Solution & Answer

Answer 13

Expert Solution & Answer

Answer 14

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Answer 15

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Solution Summary: The author explains that the final result must contain two significant figures.

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