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Chemistry Abeka > Exam > Flashcards

Exam Flashcards

1
Q

Can be decomposed by chemical means into simpler substances
Definite shape
Pure substances

A

Compounds

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2
Q

Two or more pure substances physically mixed not chemically combined

A

Mixture

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3
Q

-273.15° c or -459.67° f or 0°k

A

Absolute zero

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4
Q

Heat required to cause a unit rise in the temperature of a mass unit

A

Specific heat

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5
Q

Hard and have very high melting points
Bonded with a strong bond into one
Do not exist as independent molecules

A

Covalent network

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6
Q

Electrons using light

A

Hydrogen spectrum

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7
Q

The ability of chemically combined atoms to attract electrons to themselves
Predict weather the electron is ionic or covalent

A

Electronegativity

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8
Q

Energy required to remove an electron from an atom

A

Ionization energy

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9
Q

Pv = nrt

A

Ideal gas law

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10
Q

Positive and attracted to negative
Used with metals and nonmetals and transfer

A

Ionic

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11
Q

Sharing Bond N2 O2

A

Covalent

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12
Q

Normally bonds through metals it also has the delocalized electrons malleable ductile

A

Metallic

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13
Q

Volume and temperature
Directly proportional

A

Charles law

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14
Q

Volume and pressure
If the pressure goes up the volume goes down
P1 over V1 equals P2 over V2
Indirectly proportional example used with people in car

A

Boyles

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15
Q

keeps the heat within

A

Endothermic

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16
Q

Puts the heat without

A

Exothermic

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17
Q

Atoms will tend to react chemically so as to achieve a noble gas electron configuration either by losing or gaining electrons or by sharing electrons with other atoms

A

Octet rule

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18
Q

Unequal

A

Polar

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19
Q

Equal

A

Nonpolar

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20
Q

3.00 * 10 to the 8th m/s

A

Speed of light in a vacuum

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21
Q

Particles arranged in a regular and repeated three-dimensional pattern

A

Crystalline solid

22
Q

Particles arrange randomly

A

Amorphous solid

23
Q

The number of protons in a nucleus

A

Atomic number

24
Q

Atoms of the same element that differ in their Mass numbers

A

Isotope

25
Q

Energy of movement

A

Kinetic

26
Q

Energy due to position

A

Potential

27
Q

Simplest repeating units in a crystal

A

Unit cell

28
Q

It is impossible to determine the momentum and position of an electron at the same time

A

Uncertainty principle

29
Q

Measure of disorder in a system

A

Entropy

30
Q

Shows only the simplest ratio of atoms in a compound

A

Empirical formula

31
Q

Group 17 salt former

A

Halogens

32
Q

Group 16 oxygen family

A

Chalogens

33
Q

Group 18 filled valence electrons

A

Noble gases

34
Q

Melts at low temperature easy to cut very reactive
Group 1

A

Alkali metals

35
Q

High melting points malleable less reactive
Group 2

A

Alkali earth metals

36
Q

AB = a + b

A

Decomposition

37
Q

A + b = a b

A

Combination

38
Q

A+BC = b + AC

A

Single displacement

39
Q

AD+CD =AD + CB

A

Double displacement

40
Q

Heat per unit Mass required to melt a substance

A

Heat of fusion

41
Q

Application of the law of conservation of energy
Delta e equals heat Plus work

A

First law of thermodynamics

42
Q

Entropy always increasing

A

Second law of thermodynamics

43
Q

Light consists of photons

A

Quantum theory of light

44
Q

Bundles or packets of energy

A

Photons

45
Q

Limit of eight in the shell

A

Valence electrons

46
Q

Ask the most electrons into a small space

A

Face-centered packing

47
Q

Simple cubic along with two units cell arrangements

A

Body centered packing

48
Q

Measures compactness of metal

A

Density

49
Q

A bonding situation in which electrons are shared by more than two atoms

A

Delocalization

50
Q

Sulfate

A

SO4

Chemistry Abeka (3 decks)

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