10 All the following are evidence of a chemical change except –F production of a gasG production of a precipitateH a new substance formedJ a decrease in size11 Which of these situations most clearly demonstrates a chemical change?A Observing water evaporate on a hot surfaceB Describing the texture of two different rocksC Calculating the density of an unknown substanceD Observing gas bubbles form when unknown substances combine12 Which of the following is NOT a chemical change?F An ice cube meltingG An egg fryingH A nail rustingJ A match burning

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10 All the following are evidence of a chemical change except- F production of a gas G production of a precipitate H a new substance formed a decrease in size

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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Question

10 All the following are evidence of a chemical change except –
F production of a gas
G production of a precipitate
H a new substance formed
J a decrease in size
11 Which of these situations most clearly demonstrates a chemical change?
A Observing water evaporate on a hot surface
B Describing the texture of two different rocks
C Calculating the density of an unknown substance
D Observing gas bubbles form when unknown substances combine
12 Which of the following is NOT a chemical change?
F An ice cube melting
G An egg frying
H A nail rusting
J A match burning

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