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71 Cards in this Set
- Front
- Back
Identify quantitative or qualitative and why?
The sun is approximately 93 million mi from Earth |
Quantitative.
This statement clearly involves a measurable distance |
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Identify quantitative or qualitative and why?
Leonardo da Vinci was a better painter than Michelangelo |
Qualitative.
This is a value judgment. There is no numerical scale of measurement for artistic excellence. |
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Identify quantitative or qualitative and why?
Ice is less dense than water |
Qualitative.
If the numerical values for the densities of ice and water were given, it would be a quantitative statement. |
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Identify quantitative or qualitative and why?
Butter tastes better than margarine. |
Qualitative.
Another value judgment |
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Identify quantitative or qualitative and why?
A stitch in time saves nine |
Qualitative.
Even though numbers are involved, they are not the result of measurement |
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Classify the following as a hypothesis, a law, or a theory:
Beethoven's contribution to music would have been much greater if he had married |
hypothesis
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Classify the following as a hypothesis, a law, or a theory:
An autumn leaf gravitates toward the ground because there is an attractive force between the leaf and the Earth. |
law
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Classify the following as a hypothesis, a law, or a theory:
All matter is composed of very small particles called atoms. |
theory
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Does the following describe a chemical or a physical property?
Oxygen gas supports combustion |
Chemical property.
Oxygen gas is consumed in a combustion reaction; its composition and identity are changed. |
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Does the following describe a chemical or a physical property?
Fertilizers help to increase agricultural production |
Chemical property.
The fertilizer is consumed by the growing plants; it is turned into vegetable matter (different composition). |
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Does the following describe a chemical or a physical property?
Water boils below 100*C on top of a mountain |
Physical property.
The measurement of the boiling point of water does not change its identity or composition. |
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Does the following describe a chemical or a physical property?
Lead is denser than aluminum |
Physical property.
The measurement of the densities of lead and aluminum does not change their composition. |
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Does the following describe a chemical or a physical property?
Uranium is a radioactive element |
Chemical property.
When uranium undergoes nuclear decay, the products are chemically different substances. |
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Does the following describe a chemical or a physical property?
The helium gas inside a balloon tends to leak out after a few hours |
Physical change.
The helium isn't changed in any way by leaking out of the balloon. |
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Does the following describe a chemical or a physical property?
A flashlight beam slowly gets dimmer and finally goes out. |
Chemical change in the battery.
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Does the following describe a chemical or a physical property?
Frozen orange juice is reconstituted by adding water to it |
Physical change.
The orange juice concentrate can be regenerated by evaporation of the water. |
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Does the following describe a chemical or a physical property?
The growth of plants depends on the sun's energy in a process called photosynthesis |
Chemical change.
Photosynthesis changes water, carbon dioxide, etc., into complex organic matter |
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Does the following describe a chemical or a physical property?
A spoonful of table salt dissolves in a bowl of soup |
Physical change.
The salt can be recovered unchanged by evaporation |
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Classify the following as an element, a compound, a homogenous mixture, or a heterogeneous mixture:
seawater |
homogeneous mixture
|
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Classify the following as an element, a compound, a homogenous mixture, or a heterogeneous mixture:
helium gas |
element
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Classify the following as an element, a compound, a homogenous mixture, or a heterogeneous mixture:
sodium chloride (table salt) |
compound
|
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Classify the following as an element, a compound, a homogenous mixture, or a heterogeneous mixture:
a bottle of soft drink |
homogeneous mixture
|
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Classify the following as an element, a compound, a homogenous mixture, or a heterogeneous mixture:
a milkshake |
heterogeneous mixture
|
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Classify the following as an element, a compound, a homogenous mixture, or a heterogeneous mixture:.
air in a bottle |
homogeneous mixture
|
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Classify the following as an element, a compound, a homogenous mixture, or a heterogeneous mixture:
concrete |
heterogeneous mixture
|
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What is the name of the element represented by the chemical symbol?
Li |
Lithium
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What is the name of the element represented by the chemical symbol?
F |
Fluorine
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What is the name of the element represented by the chemical symbol?
P |
Phosphorus
|
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What is the name of the element represented by the chemical symbol?
Cu |
Copper
|
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What is the name of the element represented by the chemical symbol?
As |
Arsenic
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What is the name of the element represented by the chemical symbol?
Zn |
Zinc
|
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What is the name of the element represented by the chemical symbol?
Cl |
Chlorine
|
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What is the name of the element represented by the chemical symbol?
Pt |
Platinum
|
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What is the name of the element represented by the chemical symbol?
Mg |
Magnesium
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What is the name of the element represented by the chemical symbol?
U |
Uranium
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What is the name of the element represented by the chemical symbol?
Al |
Aluminum
|
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What is the name of the element represented by the chemical symbol?
Si |
silicon
|
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What is the name of the element represented by the chemical symbol?
Ne |
Neon
|
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Give the chemical symbol for the following element:
potassium |
K
|
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Give the chemical symbol for the following element:
tin |
Sn
|
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Give the chemical symbol for the following element:
chromium |
Cr
|
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Give the chemical symbol for the following element:
boron |
B
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Give the chemical symbol for the following element:
barium |
Ba
|
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Give the chemical symbol for the following element:
plutonium |
Pu
|
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Give the chemical symbol for the following element:
sulfur |
S
|
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Give the chemical symbol for the following element:
argon |
Ar
|
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Give the chemical symbol for the following element:
mercury |
Hg
|
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Classify the following substance as an element or a compound:
hydrogen |
element
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Classify the following substance as an element or a compound:
water |
compound
|
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Classify the following substance as an element or a compound:
gold |
element
|
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Classify the following substance as an element or a compound:
sugar |
compound
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Bromine is a reddish-brown liquid. Calculaate its density (in g/mL) if 586 g of the substance occupies 188 mL.
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Density =
mass / volume ::: 586 g / 188 mL = 3.12 g/mL |
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Express the following number in scientific notation:
0.000000027 |
2.7 * 10 ^-8
|
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Express the following number in scientific notation:
356 |
3.56 * 10 ^2
|
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Express the following number in scientific notation:
47,764 |
4.7764 * 10 ^4
|
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Express the number in scientific notation:
0.096 |
9.6 * 10 ^-2
|
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What is the number of significant figures in the following measurement?
4867 mi |
four
|
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What is the number of significant figures in the following measurement?
56mL |
two
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What is the number of significant figures in the following measurement?
60,104 ton |
five
|
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What is the number of significant figures in the following measurement?
2900 g |
two, three, or four
|
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What is the number of significant figures in the following measurement?
40.2 g/cm^3 |
three
|
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What is the number of significant figures in the following measurement?
0.0000003 cm |
one
|
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What is the number of significant figures in the following measurement?
0.07 min |
one
|
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What is the number of significant figures in the following measurement?
4.6 * 10^19 atoms |
two
|
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How many significant figures are there in the following?
0.006 L |
one
|
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How many significant figures are there in each of the following?
0.0605 dm |
three
|
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How many significant figures are there in each of the following?
60.5 mg |
three
|
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How many significant figures are there in each of the following?
605.5 cm^2 |
four
|
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How many significant figures are there in each of the following?
960 * 10 ^-3 |
two or three
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How many significant figures are there in each of the following?
6 kg |
one
|
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How many significant figures are there in each of the following?
60 m |
one or two
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