Unit 2: Chapters 5,6,8,9 Flashcards
Moles are usually used to calculate
molar mass
Mole equation
1 mole = 6.022 × 10^23 items
Molar mass =
mass of 1 mole of a substance in g/mol
Mass percent =
mass of element / total mass compound × 100%
Combustion
reaction with O2
Combination (a.k.a. synthesis)
one product
Decomposition
one reactant
Single displacement
one element + one ionic compound reactants
Double replacement
2 ionic compounds as reactants
Oxidized is
when an element loses electrons
Reduced is
when an element gains electrons
Oxidizing agent (oxidant) is
The species thats being…
the species in a reaction that causes another one to be oxidized
The species thats being reduced
Reducing agent (reductant) is
The species that’s being…
the species in a reaction that causes another one to be reduced
The species that’s being oxidized
Highest electronegative element
F
Bond polarity is
The (larger/smaller) the difference, the (more/less) polar the bond
The difference between the two electronegative values
The larger the difference, the more polar the bond
