Chemical Reactions
A common chemical reaction in plants.
photosynthesis
Something that does not allow electricity to flow easily.
insulator
Used to measure the strength of an acid or base.
pH scale
A physical combination of two or more substances.
Elements that are shiny and conduct heat.
metals
The combination of two or more atoms.
molecules
The ability of metals to react easily with one another.
reactivity
A mixture of metals, or metals and nonmetals.
salt
A mixture where one substance has dissolved into another substance.
solution
atoms
This change creates a new compound.
chemical change
The new substance created in a chemical reaction.
product
Good conductors of heat and electricity.
metal
The strength of an acidic solution.
acidity
The particles in this type of mixture can be easily seen.
suspension
The number of protons in the nucleus of an atom.
atomic number
These are formed by chemical changes.
compounds
The starting substance in a chemical reaction.
reactant
Property of metal that can be rolled into flat sheets.
malleable
The strength of an basid solution.
aklalinity
A ______ does the dissolving.
A _______ gets dissolved.
Double Points!
solvent
solute
Elements with properties of both metals and nonmetals.
metalloids
Hydrocarbons that have been chemically changed into polymers are also called...
plastics
A solid that forms during a chemical reaction when solutions are mixed.
precipitate
A material that loses its resistance to electrical flow at very cold temperatures.
superconductor
The reaction that occurs when an acid and a base combine to form a salt and water.
Double points!!
neutralization reaction
A mixture in which the layers are too small to be seen, like whipped cream, is called...
a colloid
Two or more atoms combined create this.
molecule
Compounds made from hydrogen and carbon are called...
hydrocarbons