CHEM 1100 EXAM 1 QUESTIONS WITH
CORRECT DETAILED ANSWERS
standard deviation - ANSWER- range divided by the square root of n
average - ANSWER- add all values up and divide by n
range - ANSWER- highest measurement minus lowest measurement
element - ANSWER- a pure substance that cannot be decomposed by ordinary
chemical methods into simpler substances
compound - ANSWER- is composed of two or more elements chemically combined in a
definite weight ratio
mixture - ANSWER- are composed of two or more substances, but not in any particular
fixed weight ratio
intensive property - ANSWER- are those that do not depend on the amount of matter
being examined
mixture examples - ANSWER- air, blood, milk, wood
compound examples - ANSWER- Sodium chloride and H20
element examples - ANSWER- nitrogen, oxygen
white sand is ________ to water - ANSWER- insoluble
powdered carbon is ________ to water - ANSWER- insoluble
powdered magnesium is ________ to water - ANSWER- insoluble
sodium chloride is _______ to water - ANSWER- soluble
white sand is _______ to 6 M HCl - ANSWER- insoluble
powdered carbon is ________ 6 M HCl - ANSWER- insoluble
powdered magnesium is ________ to 6 M HCl - ANSWER- soluble
sodium chloride is ________ to 6 M HCl - ANSWER- soluble
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