Term
| Five steps of the Scientific Method: a,b,c,d,e |
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Definition
a: observe
b: hypothesis
c: materials
d: procedure
e: conclusion |
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Term
| difference between qualitative and quantitative |
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Definition
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Term
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Calculate the following: (you may use a calculator)
a. (1.3 x 10-4) x (3.6 x 106) :
b. (2.3 x 104) (1.1 x 102) :
c. (5.6 x 109) + (1.0 x 102) :
d. (2.9 x 10-2) – (1.0 x 102) : |
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Definition
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Term
Put the following in scientific notation.
a. 56790
b. 1,000,000
c. .0056
d. .203 |
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Definition
a. 5.679 * 10^4
b. 10^6
c. 5.6*10^-3
d. 2.03*10^-1 |
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Term
# of sig figs?
a. 23400
b. 0.987
c. 34
d. 0.00987
e. 685.990 f. 101420 |
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Definition
a. 3
b. 3
c. 2
d. 3
e. 6
f. 5 |
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Term
Calculate with sig figs:
a. 23.500 + 78.0232
b. 0.0983 * 4532.1
c. 45.67 - 0.98
d. 450 - 25.5 |
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Definition
a. 101.523
b. 446
c. 45
d. 420 |
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Term
Round to sig fig in ()
a. 8590.3 (4)
b. 0.0074 (1)
c. 23.845 (4)
d. 130.88 (3) |
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Definition
a. 8590.
b. .007
c. 23.85
d. 131 |
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Term
Units and instrument for each
a. Length
b. Mass
c. Temp
d. Volume |
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Definition
a. meters-- meter stick
b. kg-- scale
c. Celcius-- Thermometer
d. Liters-- graduated cylinder |
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Term
# of exponent to the prefix
a. kilo b. milli
c. nano d. Mega
e. centi f. Micro |
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Definition
a. 3
b. -3
c. -9
d. 6
e. -2
f. -6 |
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Term
Calculate:
a. 1500 km= _m
b. 2.5 pg= _mg
c. 539.54 nm= _Mm
d. 34 m^3= _cubic cm |
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Definition
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Term
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Definition
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Term
| An object has mass of 25g and volume of 6.5cm^3. What's the Density? |
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Definition
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Term
| A brick has a mass of 105.8g. It is the form of a rectangular block with the dimensions of 11.13cm, 22.25cm, and 33.54cm. What is the density? |
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Definition
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Term
| The Density of water is known to be 1.00g/cm^3. The sample we used had a mass of 35.28g. What was the volume of the water? |
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Definition
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Term
Convert the following:
a. 56.5C= _K
b. 210K= _C |
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Definition
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Term
| What is the law of conservation of mass? |
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Definition
| Mass is not created or destroyed. |
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Term
What are the three main states of matter?
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Definition
a. solid
b. liquid
c. gas |
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Term
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Definition
| Anything that has mass and takes up space. |
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Term
Physical or Chemical properties?
a. the car is red
b. the element ignited when put in water.
c. The melting point is 18C
d. it reacts with oxygen |
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Definition
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Term
Physical or Chemical change?
a. cutting a piece of paper
b. burning gasoline
c. a car rusts
d. a chocolate bar melts |
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Definition
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Term
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Definition
| A pure chemical substance |
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Term
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Definition
| a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances |
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Term
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Definition
| When two substances are mixed but not combined chemically |
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Term
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Definition
| Stubstances are called "pure" to set them apart from mixtures. |
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Term
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Definition
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Term
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Definition
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Term
HomoX or heteroY
a. beach sand
b. salt dissolved in water
c. kechup
d. beef stew
e. milk f. bowl of fruit loops |
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Definition
a. X
b. Y
c. Y
d. X
e. Y
f. X |
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Term
| What are the four methods of separating substances physically? |
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Definition
a. filtration
b. exraction
c. decanting
d. evaporation |
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Term
| What is the law of constant composition? |
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Definition
| Matter is not created or destroyed |
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Term
| What did dalton contribute to the atomic theory? |
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Definition
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Term
| What did Michael Faraday contribute to the atomic theory? |
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Definition
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Term
| What did Ben Franklin contribute to the atomic theory? |
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Definition
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