Chemistry Simple Vocab

Created by KAberger 

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48 terms

Precision

the exactness of a measurement

Accuracy

the quality of nearness to the truth or the true value

Quantitative

data that is measurable; obervations based on numbers

Qualitative

relating to or involving comparisons based on qualities

Meniscus

the curve at a liquid's surface by which you measure the volume of the liquid

Density

the amount of matter in a given space

superscript

text placed slightly higher than other text on a line

subscript

a character or symbol set or printed or written beneath or slightly below and to the side of another character

mass

the amount of matter in an object

weight

A measure of the force of gravity on an object

volume

the amount of space an object takes up

matter

that which has mass and occupies space

heterogeneous

consisting of elements that are not of the same kind or nature

homogeneous

all of the same or similar kind or nature

electrolysis

the process in which an electric current is used to produce a chemical reaction, such as the decomposition of water

distillation

the process of purifying a liquid by boiling it and condensing its vapors

filtration

the process whereby fluids pass through a filter or a filtering medium

decantation

A method of separating solid insoluble particles from a liquid by leaving the particles to settle and pouring off the liquid.

evaporation

the process of becoming a vapor

luster

the visual property of something that shines with reflected light

ductile

capable of being shaped or bent or drawn out

malleable

capable of being shaped

soluble

(of a substance) capable of being dissolved in some solvent (usually water)

electrolyte

a substance that dissolves in water to give a solution that conducts electric current

melting

the process whereby heat changes something from a solid to a liquid

freezing

the withdrawal of heat to change something from a liquid to a solid

condensation

the process of changing from a gaseous to a liquid or solid state

vaporization

the change from a liquid to a gas

sublimation

(chemistry) a change directly from the solid to the gaseous state without becoming liquid

precipitate

separate as a fine suspension of solid particles

kinetic

supplying motive force

endothermic

(of a chemical reaction or compound) occurring or formed with absorption of heat

exothermic

gives off heat

Diffusion

Gas particles moving (cookies in house)

Properties of matter

Describe and identify matter

Numeric properties

Freezing/Melting Point
Mass
Volume
Density
ETC.

Chemical Properties

-Able to combine and change
-Ability to burn
-Ability to rust

Physical Change

Change in form, not in composition
-Cutting
-Melting
-Vaporization
-Dissolving
-Condensation
-Freezing
-Change of Phases

Chemical Change

Change in composition, has new properties
- Cooking
- Digesting
- Rusting
- Burning

Indications of Chemical Change

-Energy change (hot, cold, lights)
-Color change (gas, odor, bubble)
-Precipitate (solid forms)

Elements

Simplest kind of matter
One kind of matter
Can't be broken down

Compounds

Two or more elements
Can be separated by CHEMICAL means (decomposition by heat)
Identified by formulas

Mixture

Two or more types of matter
Varying proportion or composition
Can be separated by PHYSICAL means

Homogeneous

Same composition
One phase

Heterogeneous

Not the same
Two or more

System

Process you're observing

Endothermic

Energy goes into the system and is absorbed
Comes from outside
Melting, Vaporizing

Exothermic

Energy goes into surrounding and is released
Thing gets colder
Freezing, condensing

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