Test Flashcards
chemical reaction
the process by which one or more substances are changed into one or more different substances
skeleton equation
the chemical equation that does not indicate the relative amount of the reactants and products
catalyst
a substance that speeds up the reaction but it not used up in the reaction
+
used to separate two reactions or products
——–>
yield
separates reactants and products
———>
used in place of ——> for reversible reactions
(s)
solid
(l)
liquid
(g)
gas
(aq)
aqueous
triangle about the arrow
h above the arrow
indicates that heat is supplied to the reaction
element above the arrow
indicates the substance was used as a catalyst
Combination/Synthesis Reaction
two or more reactants come together and form ONE product
Decomposition
break compound into elements
AB -> A + B
Single replacement
Switch the halogens or metals
A + BC -> B +AC
- if a metal is more reactive it will replace the other metal
- if a halogen is more reactive it will replace the other halogen
double replacement
switch metals
AX + BY -> AY + BX
combustion
C+H + O2 -> CO2 + H2O
Diatomic Molecules
H O N Cl Br I F Have No Fear of Ice Cold Beer
When an ionic compound dissolves in water…
it dissociates into cations and anions
complete ionic equation
shows dissolved ionic compounds as dissociated free ions
net ionic equation
only shows what involved in making the main product
spectator ion
ion that appears on both sides of the equation but is not directly involved in the reaction of the main product
DECOMP RULE #1:
Carbonates
(CO3)^-2 compounds give off carbon dioxide and an oxide compound
DECOMP RULE #2
Sulfates
(SO4)^-2
Give off sulfur trioxide (SO3) and an oxide compound
