Matter and Change

3 states of matter

Element

definition

simplest form of matter the has a unique property

examples

hydrogen

iron

silver

gold

Compound

definition

substance with two or more elements.

examples

H20 = water

sugar = C6H12O6

Law of conservation law

IMPORTANT LAW OF NATURE!!!

law says:

Mass cannot be created or destroyed. it will change form.

Chemical reactions

chemical property

definition

ability to undergo a specific chemical change.

chemical change

definition

one or more substances that change into one or more substances.

end of reaction

start of reaction

reactants

products

recognizing a chemical change.

formation of precipitation

little pieces of material in liquid that was not there before.

transfer of energy

heat

light

change in color

production of gas

bubbles

new smell

Describing matter

intensive properties

definition

examples:

hardness

destiny

depends on the type of matter and what it is made up of.

extensive properties

definition

Substance

examples

volume

mass

depends on the amount of matter.

physical properties

definition

has a uniform and definite composition

size / or amount can change, but the composition always stays the same.

solid

liquid

gas

examples:

examples:

examples:

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definite volume ( cannot be compressed ).

particles: that vibrate against each other, cannot move out of place.

definite shape ( will not take the shape of its container ).

No definite shape ( will take the shape of it's container ).

Particles: that can move out of place and around others. (flow / pour).

definite volume ( cannot be compressed ).

Mixtures

separating them

mechanical

filtration

distillation

2 types

Homogeneous

definition: physical blend with two or more components.

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