ionic compounds
naming ionic compounds
percent composition
empirical formulas
molecular formulas&other
100
When a cation bonds with an anion, what charge does this compound have?
neutral charge
100
name this chemical formula: CaCl2
Calcium chloride
100
what is % compostition
is obtained by dividing the mass of each individual element in 1 mole of the compound by the total molar mass of the compound.
100
what is the formula that gives the simplest whole number ratio of atoms in a compound?
empirical formula
100
molecular formula=molar mass divided by..?
Empirical formula molar mass
200
in an ionic compound, which element keeps its name?
the metal
200
which of these elements are cations?: O N Mg Zn S
Mg Zn
200
what's the percent composition of KNO3?
potassium:38.67% nitrogen: 13.86% oxygen:47.48%
200
which formula of a compound does this describe: the subscripts give the actual number of each element in th formula?
empirical
200
in a molecuar formula, n=?
actual mass /molar mass of empirical formula
300
in an ionic compound, which element transfers their electrons?
metal(cation)
300
write the chemical formula for iron(II) nitride
FeN2
300
if the empirical formula of a compound is C3H8, what can be a possible molecular formula?
C3H8
300
how is the molecular formula different than an empirical formula?
identifies the actual number of atoms present in a molecule
400
with ionic compounds, are electrons shared or transferred?
transferred
400
write the chemical formula for lead(II)nitrate
Pb(NO3)2
400
determine the percent composition of carbon in C6H12O6?
40%
400
name all the steps of finding the empirical formula.
percent to mass mass to mole divide by small multiply til' whole
400
carbon 49.48%, hydrogen 5.19%, oxygen 16.48% and nitrogen 28.85%. Its molecular weight is 194.19 g/mol. What is its molecular formula?
C8H10N4O2.
500
what's the point of subscripts in ionic compounds?
to balance out the charges so there is no charge(ion)
500
which compounds are ionic? MgO N2O CaO KCl K2SO4
MgO K2SO4 KCl
500
find the percent composition of hydrogen in H2SO4
2.06%
500
a compound has 13.5g of Ca, 10.8g of O, and .0675 g of H. what is the empirical formula?
Ca2O2H2
500
the sum of charges in an ionic compound must equal...
zero
M
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n
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