Matter- Brandi Carlyle
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Matter
Everything that has mass.
Chemistry
All about how things are made up such as properties, what things are made of, and how the things interact and change.
Element
Most simple of a substance by chemical means. Cannot be broken down any more.
Atom
Smallest unit of an element in order to maintain the properties.
Compound
Two or more atoms of different elements chemically combined.
Molecule
Smallest unit of an element that continues to show physical and chemical properties of the substance.
Chemical Formula
Represents compounds and molecules. Ex. H2O
Pure Substance
One element or compound with definite chemical and physical properties.
Mixture
Two substances or more that are not combined by chemical means. Ex. Trail Mix
Heterogeneous Mixture
Substances don’t mix ‘uniformly’ and aren’t evenly distributed.
Heterogeneous Mixture
Mixture is same throughout and looks the same. Noting is separated.
Miscible
Many different substances creating a new substance. Ex. Gasoline
Immiscible
Substances do not mix. Two layers are seen. Ex. Oil and Water
Melting Point
The temperature that makes a sold turn into a liquid.
Boiling point
The temperature when a solid turns into a gas.
Density
What makes things float such as a Diet Coke compared to a regular Coke. It is the ratio of a substances mass to volume. D=m/V.
Reactivity
When a substance is able to combine with another substance by chemical means.
Flammability
When a substance is able to catch fire quickly when exposed to an open flame.
Physical properties
Appearance. Able to be observed without changing the substance.
Chemical properties
When the identity of a substance changes they can be observed.
Physical Change
Change made by not changing the chemical identity of a substance. Ex. Change of state
Chemical Change
Changing the identity of a substance using chemical means. Ex. Setting it on fire.