Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition) - Standalone book
Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition) - Standalone book
12th Edition
ISBN: 9780321908445
Author: Karen C. Timberlake
Publisher: PEARSON
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Chapter 1, Problem 1.50CQ

Classify each of the following as an observation, a hypothesis, an experiment, or aconclusion: (1.2)
a. A big log in the fire does not burn well.
b. If I chop the log into smaller wood pieces, it will burn better.
c. The small wood pieces burn brighter and make a hotter fire.
d. The small wood pieces are used up faster than burning the big log.

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1.48 Write each of the following in scientific notation: (1.5) a. 0.0042 b. 310 c. 890 000 000 d. 0.000 000 056 I
A sample is put into 400-mL of water. It releases 58.829 kJ of heat energy when it is combusted. What was the temperature change of the water during this combustion? (1:3)
(1.4)Which of the following is a chemical change? O cutting papers O rusting iron O breaking glasses dissolving sugar in water

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Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition) - Standalone book

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