Chemistry Midterm Shs

Front 1

Reactants

Back 1

Substances that undergo a chemical reaction

Front 2

Products

Back 2

New substances produced by a chemical reaction.

Front 3

element

Back 3

A pure substance that cannot be decomposed by ordinary chemical means.

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Compound

Back 4

can be decomposed into simpler substances

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Group or Family

Back 5

vertical row on periodic table

have similar properties

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metals

Back 6

luster, malleablility, tensile, resist breaking, good conductors

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metalloids

Back 7

semiconductors, some characteristics of metals and non-metals

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noble gases

Back 8

group 18, stable, nonreactive group

Front 9

Density

Back 9

relationship of mass to volume of a substance

D = m/V

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non-metals

Back 10

brittle, poor conductors

Front 11

Law of definite composition

Back 11

chemical compound contains the same elements in exactly the same proportions by mass regardless of the size of the sample or source of the compound

Front 12

Conversion factor

Back 12

ratio derived from the equality of 2 different units in calculations as algebraic factors

Front 13

Law of Multiple Proportions

Back 13

If two or more different compounds are composed of the same two elements, the masses of the second element combined with a certain mass of the first element can be expressed as ratios of small whole numbers.

Front 14

Atomic number

Back 14

Number of protons in the nucleus of an atom

Front 15

Mole

Back 15

amount of substance that contains same number of particles as the number of atoms in exactly 12g of Carbon-12.

6.02 x 10^23

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Protium

Back 16

Hydrogen isotope, charge of +1

(1 proton, 0 neutrons)

Front 17

Coefficient

Back 17

small whole number in front of a formula in a chemical equation

Front 18

3.00 x 10^8

Back 18

Speed of light (c)

Front 19

Kilogram

Back 19

fundamental SI unit for mass

Front 20

Alkaline Earth Metals

Back 20

Group 2 elements

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Halogens

Back 21

Group 17 elements

Front 22

Alkali Metals

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Group 1 elements

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Transition metals

Back 23

"d" block elements

Front 24

Law of Conservation of Mass

Back 24

mass can neither be created nor destroyed

Front 25

Quantum numbers

Back 25

specify properties of atomic orbitals and properties of electrons in the orbitals

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"Pop" Test

Back 26

Laboratory test for Hydrogen gas

Front 27

What is the flame test color of Sodium?

Back 27

Orange

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What is the flame test color of Copper?

Back 28

Green

Front 29

What is the flame test color of Potassium?

Back 29

Light purple

Front 30

Period

Back 30

horizontal row on periodic table

Front 31

Inner shell electrons

Back 31

Electrons that are not in the outer shell

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HNO3

Back 32

nitric acid

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H2SO4

Back 33

sulfuric acid

Front 34

HCl

Back 34

hydrochloric acid

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H3PO4

Back 35

phosphoric acid

Front 36

H2CO3

Back 36

carbonic acid

Front 37

Isotope

Back 37

atoms of the same element that have different numbers of neutrons

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Neutron

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neutral subatomic particle

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Proton

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Positive subatomic particle

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Electron

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negative subatomic particle

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Ground state

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Lowest energy state of an atom

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Visible light spectrum

Back 42

400- 700 nm
violet-red

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anion

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negatively charged ion

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cation

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positively charged ion

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hydrate

Back 45

composed of an anhydrous salt and water

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monatomic ion

Back 46

ion formed from a single atom

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polyatomic ion

Back 47

charged group of covalently bonded atoms

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frequency

Back 48

number of waves/second
inversely related to wavelength

Front 49

wavelength

Back 49

distance from crest to crest
inversely related to frequency

Front 50

Atomic Mass Number

Back 50

Sum of protons and neutrons

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1 milliliter

Back 51

1/1000 of a Liter
equivalent to 1 cubic centimeter