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)

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...

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