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Chem Finals Flashcards

(56 cards)

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1
Q

Adhesion

A

The property of sticking to other substances; a physical property of water

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2
Q

Alloy

A

A solution of two or more metals

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3
Q

Anion

A

Negatively charged ion

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4
Q

Atom

A

The smallest unit of an element that has all of the elements properties

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5
Q

Atomic mass

A

The average mass of an elements atoms

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6
Q

Atomic number

A

The number of protons in an atom of an element

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7
Q

Atomic theory

A

The theory that explains the nature of matter; study of the nature of atoms and how they combine to form all types of matter

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8
Q

Bond

A

The attraction between atoms or ions

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9
Q

Cation

A

Positively charged ion

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10
Q

Chemical change

A

A change in matter that results in the formation of a new substance or substances

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11
Q

Chemical property

A

A characteristic of a substance that describes its ability to change into a new substance or substances; how a substance interacts with other substances, such as acid, or how it reacts to heat or light

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12
Q

Chemical reaction

A

The process in which a chemical change occurs; a reaction that produces a new substance or substances

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13
Q

Chemical formula

A

A formula that identifies which elements, and how many atoms or ions of each, are in a compound

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14
Q

Compound

A

A pure substance made from two or more elements that are combined together chemically

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15
Q

Cohesion

A

The property of sticking together; a physical property of water

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16
Q

Covalent bond

A

The attraction between atoms created by the sharing of a pair of electrons between Atoms

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17
Q

Element

A

A pure substance that cannot be broken down into simpler substances

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18
Q

Electron

A

A negatively charged particle in an atom, located outside the nucleus of the atom

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19
Q

Halogens

A

Elements found in group 17 of the periodic table of elements; these non-metals are all very reactive

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20
Q

Group/family

A

One of 18 vertical columns in the periodic table of elements; classification of elements with certain shared physical and chemical properties; also known as a chemical family

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21
Q

Ion

A

An atom or group of atoms that has an electric charge as the result of losing or gaining electrons

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22
Q

Ion charge

A

An electric charge that an atoms or group of joined atoms take on when it loses or gains electrons

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23
Q

Ionic bond

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A

The attraction between ions of opposite charges; bond in an ionic compound

24
Q

Ionic compound

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A

A pure substance formed one at least one metal and one non-metal combine chemically

25
Diatomic molecule
A molecule that contains two atoms of the same element
26
Isotope
Atoms of the same element that have different atomic masses
27
Law
A generalized description of some aspect of the physical world under certain conditions
28
Mass
The measurement of the quantity of matter in an object
29
Matter
Anything that has mass and volume
30
Mechanical mixture
A combination of pure substances in which the different substances are individually visible; a type of heterogeneous mixture
31
Mass number
The total number of protons and neutrons in the nucleus of an atom
32
Medicine wheel
A first Nations and metis way of knowing the physical world; a medicine wheel has four quadrants and connects everything in the universe together into one whole
33
Alkali metals
Elements found in group one of the periodic table of elements; these metals have low melting point and react easily with water and air
34
Metalloids
Elements with metallic and non-metallic properties | Ex: silicon
35
Metals
Elements that are malleable and ductile, and conduct electricity and heat; most elements are metals
36
Molecular compound
A pure substance formed when non-metals combine chemically
37
Molecule
A group of atoms that share electrons; molecular compounds contain molecules
38
Neutral
The property of having no overall electric charge; both the positive and negative charges are equal
39
Noble gas
Elements found in group 18 of the periodic table of elements; these gases are not chemically reactive except in certain special situations
40
Non metals
Elements that do not resemble metals; nonmetals are brindle and generally do not conduct electricity or heat ex:carbon
41
Nucleus
The Centre of an atom where all of the atoms positive charge and most of an atoms mass is concentrated
42
Period
1of7 horizontal rows in the periodic table of elements
43
Periodic law
A generalized description stating the elements arranged in order of atomic numbers show a periodic repetition of properties
44
Periodic table
A chart that organizes all of the elements in rows and columns
45
Physical property
A characteristic of a substance that can be observed or measured
46
Polyatomic ion
A group of atoms of different elements with an overall electric charge, and which acts as a single ion
47
Protons
A positively charged particle in an atom, located in the nucleus of the atom
48
Property
A characteristic that describes a substance
49
Pure substance
A substance made up of only one kind of particle, with a unique set of properties, such as colour, hardness, boiling point, and melting point; an element or compound
50
Relative mass
The mass of an object in comparison to the mass of another object
51
Solution
A combination of pure substances in which the different substances are not individually visible; a homogeneous mixture
52
Subatomic particle
A particle that makes up an atom; includes protons, neutrons, and electrons
53
Suspension
A cloudy mixture in which tiny particles of one substance are held within another; a type of heterogeneous mixture
54
Theory
A generalized explanation of a set of related observations or events supported by research and good arguments
55
Volume
The measurement of how big an object is or how much space of fluid takes up
56
Transition metal
Elements in the middle of the periodic table

Chemestry (1 decks)

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