Directions: Please answer the following questions to the best of your ability. 1. Round the following numbers to the number of significant figures indicated: a) 345 (2 s.1.) b) 7850 (1 s.1.) c) 24.68 (3 s.f)

Directions: Please answer the following questions to the best of your ability. 1. Round the following numbers to the number of significant figures indicated: a) 345 (2 s.1.) b) 7850 (1 s.1.) c) 24.68 (3 s.f)

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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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

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1.) Express the following number in decimal notation: 4.22 x 10-3
Carry out the following operations as if they were calculations fromexperimental data and express each answer in the correct units and with thecorrect number of significant figures.a. 5.6792 m + 0.6 m + 4.33 m =b. 3.70 g - 2.9133 g =c. 4.51 cm X 3.6666 cm =d. (22.4 g + 102.7 g + 0.005 g) / 5.478 ml =