Chem Test 1

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Give an example of physical change

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17 Terms

1

Give an example of physical change

ice melting (boiling point, melting point), tearing paper

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2

Give an example of chemical change

Baking soda in vinegar, rusting, paper burning

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3

What is the term for a tentative explanation dealing with facts and a possible prediction of the future

hypothesis

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4

T/F A theory can be proven to be absolutely true

False, would be a law

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5

Two types of pure substances

elements and compounds

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6

if bubbles were seen on an eggshell after vinegar was poured on it, what type of change is that

chemical

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7

If antimony is a solid at 15 degrees C, and it changes to a liquid at 110 degrees C, then what kind of property would that be

physical

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8

Give an example of an intensive property

color, electrical conductivity

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9

Give an example of an extensive property

mass, volume

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10

T/F a kilo is a decimal multiplier in the metric system

true

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11

what are the SI base units of temperature and mass

temperature- kelvin, mass- kilogram

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12

What is the derived SI unit for force

kg x m/s^2

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13

Celcius to Kelvin

K = C + 273.15

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14

Kelvin to Celcius

C = K - 273.15

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15

Celsius to Fahrenheit

F = 9/5 (C) + 32

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16

Fahrenheit to Celsius

C = 5/9(F-32)

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17

If you have 80.7, how many sig figs

3

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