Vocab
Any change that alters the form or appearance of a substance but doesn't change it's state.
Physical change.
The feeling of a matter can also be called...
Texture
What is reactivity?
The ability to combine chemically with other substances.
Atoms
Reactants
Substances that undergo a chemical change.
Define chemical formula.
A group of symbols that shows the ratio of elements in a compound.
The temperature at which a liquid vaporizes.
What is boiling point?
What is oxidation?
Oxidation is the ability to combine with oxygen, to burn, decay, or rust
Ch. 12 - Melting point
Melting point is the specific temperature at which something melts.
Rates depend on what?
Energy and concentration
Define coefficient.
A number placed in front of a reactant/product that tales part in a reactant.
True or False: Oxidation is a physical property
False
What is precipitation?
Ch. 12 - When the surface particles of a solid gain enough energy that they for a gas.
Sublimation.
Chemical equation
A way to show a chemical reaction instead of words.
Activation energy
The minimum amount of energy needed to start a chemical reaction.
What is electrical conductivity?
Metals that can conduct electrical current easily because the valence electrons in a metal can move freely among the atoms.
Endothermic and exothermic.
Endothermic takes in heat and exothermic releases heat.
Ch. 13 - Subscript
The ratio of elements in a compound.
Open system
Matter can enter or escape to the surroundings.
Endothermic reaction
More energy is required to break the bonds of the products than released.
Solubility is able to _____ in other substances
What is electrical conductivity?
How much something allows electricity to flow through.
Ch. 14 - The chemical bond formed when two atoms share electrons.
Covalent bond.
Replacement
When one element replaces another element in a compound.