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Impacts Of Chem > Chapter 1 > Flashcards

Chapter 1 Flashcards

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1
Q

What makes up our bodies, belongings, physical environment and universe?

A

Matter

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2
Q

What are the 4 phases of matter

A

Liquids
Gases
Solids
Plasmas

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3
Q

Pure substances may be

A

Elements
Compounds

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4
Q

Mixtures may be

A

Heterogeneous
Homogeneous

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5
Q

Elements contain

A

-Atoms of the same type
-cannot be separated into simpler substance by chemical means

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6
Q

Compounds contain

A

-2 or more different types of atoms
-cannot be separated into a simpler substance by any physical process

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7
Q

Heterogeneous mixture

A

A composition that varies throughout.
Ex: gravel

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8
Q

Homogeneous mixture

A

Has a uniform composition throughout.
Ex: sugar dissolved in water

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9
Q

Mixtures

A

A combination of 2 or more substances in which the substances retain their distinct identities

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10
Q

Classify if this is an element, compound, or mixture: carbon dioxide

A

Compound

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11
Q

Classify if this is an element, compound, or mixture: nickel

A

Element

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12
Q

Classify if this is an element, compound, or mixture: cocaine

A

Compound

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13
Q

Classify if this is an element, compound, or mixture: water

A

Compound

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14
Q

Classify if this is an element, compound, or mixture: fluorine

A

Element

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15
Q

Classify if this is an element, compound, or mixture: table salt

A

Compound

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16
Q

Classify if this is an element, compound, or mixture: soap

A

Mixture

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17
Q

Classify if this is an element, compound, or mixture: sea water

A

Mixture

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18
Q

Physical property

A

Is one that can be observed and measured without changing the IDENTITY of a substance

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19
Q

Quantitative

A

Measured and expressed with a number

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20
Q

Qualitative

A

Not requiring explicit measurement

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21
Q

Physical change

A

The state of matter changes but the identity does not change.
Ex: ice melting to water

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22
Q

Chemical properties

A

After a chemical change, the original substance will become a new different substance. The change can not be reversed.
Ex: hydrogen gas burns in oxygen to form water

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23
Q

The measured value of an extensive property

A

Depends on the amount of matter
Ex: mass

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24
Q

The value of an intensive property

A

Does NOT depend on the amount of matter
Ex: density and temperature

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25
Q

Length

A

Meter (m)

26
Q

Mass

A

Kilogram (kg)

27
Q

Time

A

Second (s)

28
Q

Electric current

A

Ampere (A)

29
Q

Temperature

A

Kelvin (K)

30
Q

Amount of substance

A

Mole (mol)

31
Q

Luminous intensity

A

Candela (cd)

32
Q

Mega- (M)

A

1x 10^6
1,000,000

33
Q

Kilo- (k)

A

1 x 10^3
1,000

34
Q

Deci- (d)

A

1 x 10^-1
0.1

35
Q

Centi- (c)

A

1 x 10^-2
0.01

36
Q

Milli- (m)

A

1 x 10^-3
0.001

37
Q

Micro- (u)

A

1x10^-6
0.000001

38
Q

Nano- (n)

A

1x10^-9
0.000000001

39
Q

Write 11,000 in scientific notation

A

1.1 x 10^4

40
Q

Write 0.001021 in scientific notation

A

1.021 x 10^-3

41
Q

Giga- (G)

A

1x10^9
1,000,000,000

42
Q

What are found in the center of the atom

A

Protons and neutrons

43
Q

What are found outside the nucleus

A

Electrons

44
Q

Proton charge and mass

A

Relative charge: +1
Relative mass: 1

45
Q

Neutron charge and mass

A

Relative charge: 0
Relative mass: 1

46
Q

Electron charge and mass

A

Relative charge: -1
Relative mass: 0

47
Q

Mass number

A

Number of protons + neutron
(Top left of the element symbol)

48
Q

Atomic number

A

Number of protons
(Bottom left of element symbol)

49
Q

How many neutrons are in element U with a mass number of 235 and atomic number of 92

A

143

50
Q

Metal

A

Good conductor of heat and electricity

51
Q

Nonmetal

A

Poor conductor of heat and electricity

52
Q

Metalloid

A

Has properties that are intermediate between those of metals and non mental

53
Q

Where can you find alkali metals on the period table?

A

Group 1

54
Q

Where can you find alkaline earth metals on the periodic table?

A

Group 2

55
Q

Where can you find halogens on the periodic table?

A

Group 17

56
Q

Where can you find noble gases on the periodic table?

A

Group 18

57
Q

An atomic ion or monoatomic ion is one that consists of

A

Just one atom with a positive or negative charge

58
Q

An ion whose net charge is positive due to a decrease of electrons

A

Cation

59
Q

An ion whose net charge is negative due to an increase in the number of electrons

A

Anion

60
Q

Na+ is a…

A

Cation

61
Q

CI- is a…

A

Anion

Impacts Of Chem (3 decks)

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