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Chemistry 11 > Unit 3/4 > Flashcards

Unit 3/4 Flashcards

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0
Q

Quantitative

A

Numerical information

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1
Q

Qualitative

A

Non-numerical information

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2
Q

Observation

A

Qualitative information collected through the direct use of our senses

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3
Q

Interpretation

A

(Inference) an attempt to put meaning into an observation

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4
Q

Description

A

A list of the properties of something

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5
Q

Data

A

Quantitative information which is experimentally determined or obtained from references

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6
Q

Experiment

A

A test or procedure that is carried out in order to discover a result

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7
Q

Hypothesis

A

Single unproven assumption or idea that attempts to explain why nature behaves in a specific manner

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8
Q

Theory

A

A set of hypotheses that ties together a large number of observations of the real world into a logically consistent and understandable pattern. Tested, refined and expanded explanation.

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9
Q

Law

A

Broad generalization or summary statement which describes a large amount of experimental evidence stating how nature behaves when a particular situation occurs

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10
Q

Matter

A

Anything that has mass and volume

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11
Q

Substance

A

Something with a unique and identifiable set of properties

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12
Q

Physical property

A

Property that can be found without creating a new substance

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13
Q

Chemical property

A

Ability of a substance to undergo chemical reactions and change into new substances either by itself or with other substances

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14
Q

Extensive properties

A

Physical property that depends on the amount of the substance present

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15
Q

Intensive property

A

Physical property that depends solely on the nature of the substance, not on how much of the substance is present

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16
Q

Three states of matter

A

Solid, liquid, and gas

17
Q

Hardness

A

The ability of a solid to resist abrasion or scratching

18
Q

Malleability

A

The ability to be rolled or hammered into thin sheets

19
Q

Ductility

A

The ability to be stretched or drawn into wires

20
Q

Lustre

A

The manner in which a solid reflects light

21
Q

Viscosity

A

The resistance of a fluid to flow

22
Q

Diffusion

A

The intermingling of fluids as a result of motion within the fluid

23
Q

Vapor

A

The gaseous material formed by the evaporation of a substance which boils above room temperature

24
Q

Vapor pressure

A

The pressure created by the vapor evaporating from a liquid

25
Q

System

A

Part of the universe being studied in a given situation.

26
Q

Phase

A

Any part of a system which is uniform in both it’s composition and properties

27
Q

Element

A

A substance which cannot be separated into simpler substances as a rest of any chemical process

28
Q

Atom

A

The smallest possible unit of an element which retains the fundamental properties of the element

29
Q

Molecule

A

Cluster of two or more atoms held together strongly by electrical forces

30
Q

Ion

A

An atom or molecule which possesses an electrical charge

31
Q

Particle

A

General term used to describe a small bit of matter such as an atom, molecule, or ion

32
Q

Homogenous

A

A substance consisting of only one phase

33
Q

Heterogenous

A

A substance consisting of more than one phase

34
Q

Pure substance

A

A substance that is homogenous and has an unchangeable composition

35
Q

Mixture

A

A system made up for two or more substances, such that the relative amounts of each substance can be varied

36
Q

Mechanical mixture

A

Heterogenous mixture of two or more substances

37
Q

Solution

A

Homogenous mixture of two or more substances

38
Q

Solvent

A

The component in a solution in which exists in the greater quantity

39
Q

Aqueous solutions

A

Solutions in which the solvent is water

40
Q

Solute

A

Component in a solution which exists in the smaller quantity

41
Q

Compound

A

Pure substance made of two or more types of atoms (only one type of molecule is present in a compound)

Chemistry 11 (2 decks)

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