Matter- Serena Flashcards
(23 cards)
Matter
Anything the takes up space and has mass.
Chemistry
What things are made up of, how they change, and what their properties are.
Element
Something that can’t be broken down to anything smaller and can’t be separated.
Atom
Smallest unit of an element.
Compound
Made up of two or more different elements that are combine differently.
Molecule
Smallest unit of a substance
Chemical formula
Different chemical symbols and numbers combined to create a substance.
Pure substance
Matter that has a definite property and a fixed composition.
Mixture
Mixture of many pure substances not chemically combined
Heterogenous mixture
Substances not mixed uniformly and no distributed.
Homogenous mixture
Evenly distributed and the mixture is the same.
Miscible
You can mix liquids and they will combine. Ex: Gasoline
Immiscible
They don’t mix together, you can see the two layers. Ex: Oil and Water
Melting point
Temperature when a solid changes to a liquid
Boiling point
Temperature when a liquid changes to a gas
Density
Mass of a substance to the volume of a substance
Reactivity
Chemical reaction with another substance
Flammability
Ability to burn
Physical property
The properties you can see. Ex: color, shape, size
Chemical property
The properties you cant see as well. Ex: gas in a lightbulb
Physical change
Not changing the characteristics of a substance
Chemical change
Changing the characteristics of a substance
Gay- Lussacs Law
Pressure of the gas at a constant volume is the same as absolute temp
