Mixtures
Example of a mixture
Candy, Coffee and sugar, Hamburger
What is a physical property
characteristics of a substance that can be observed without changing the substance
True or false.
Chemical changes can be reversed
False
Pure Substances
gas
A combination of two or more pure substances
Mixture
The ability of a material to allow heat to flow
conductivity
what a chemical reaction produces
product
Anything that has mass and volume
matter
Phase change from gas to liquid?
Condensation
Two ways to separate mixtures
Distillation, and Filtration
Toxicity is an example of a
Chemical property
The starting materials in a chemical reaction
Reactant
A substance that cannot be broken down further.
Elements
Is energy taken away or added in Deposition?
Taken away
Liquids that mix well or don't mix well
Miscible, and Immiscible
Volume is an example of a
Physical property
Chemical reactions that release energy
Exothermic
An example of a substance that is made up of two or more elements
Salt, steel, salt, baking soda, carbon dioxide.
Sublimation is a change between what state and what state?
Solid to gas
Substances that are not mixed well
Heterogeneous mixtures
The ratio of mass to unit volume of a substance
density
Chemical reactions that absorb energy
Endothermic
Made up of different elements and/or compounds.
Molecules
Deposition is a change from what state to what state?
Gas to solid