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CHEM 121 Module 1 Exam – General Chemistry I – Verified Questions and Answers

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This document includes all verified questions and correct answers for Module 1 of CHEM 121 (General Chemistry I). Topics covered include basic chemical principles such as matter classification, atomic theory, the periodic table, significant figures, dimensional analysis, and basic chemical nomenclature. This exam resource is perfect for students beginning their chemistry course and preparing for foundational assessments.

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exponential form

a number multiplied by a power of ten


An ordinary number smaller than one (<1) when converted to exponential form will have an exponent
Negative


An ordinary number larger than one (>1) when converted to exponential form will have an exponent w

Positive


The metric system is a system based on:

divisions of tens, hundreds, thousands, etc.
(Universally used in science)
(Meters instead of feet, grams instead of ounces, liters instead of quarts)


1 foot = ____ inches
12 inches


1 mile = ____ feet

,5,280 feet


1 pound = ____ ounces

16 ounces


1 ton = ____ pounds
2,000 pounds


1 gallon = ____ quarts

4 quarts


1 quart = ____ pints

2 pints


kilo
1000


milli

, one thousandth (1/1000)


centi

hundredth (1/100)


deci

one tenth (1/10)


Do you multiply or divide a conversion from a larger unit to a smaller unit?

Multiply


Do you multiply or divide a conversion from a smaller unit to a larger unit?

divide


What are the three temperature scales?

Fahrenheit (used in everyday life, weather)
Celsius (or Centigrade, used in science)
Kelvin (used in science, especially in the study of gases)

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