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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)

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)

Introductory Chemistry: An Active Learning Approach
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Mark S. Cracolice, Ed Peters
Chapter2: Matter And Energy
Section: Chapter Questions
Problem 83E: Particles in the illustration below undergo a chemical change. Which among the remaining boxes, a...
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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)
Transcribed Image Text: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)
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