How many moles of Iron(III) oxide are contained in 92.2g of pure Fe2O3?
0.578 mol Fe2O3
300
What is the percent composition formula?
mass of element over mass of compound X 100%
300
Ions that appears on both sides of an equation and isn't directly involved in the reaction
Spectator Ions
300
What is the activity series?
Lists metals in order of decreasing reactivity.
300
Find the product for the following reaction:
C2H4 + O2 -->
C2H4 + 3O2 --> 2CO2 + 2H2O
400
The density of a gaseous compound containing carbon and oxygen is found to be 1.964 g/L at STP. What is the molar mass of the compound?
44.0 g/mol
400
Find the empirical formula Given: 25.9% N, 74.1% O
N2O5
400
Write the product for the single replacement reaction Cl2(aq) + NaBr(aq) --> ??
Make sure you balance
Cl2(aq) + 2NaBr(aq) -> 2 NaCl(aq) + Br2(aq)
400
Write the product for the following reaction (dont forget to balance)
Al + Cu(NO3) ->
2Al + 3Cu(NO3)2 -> 2Al(NO3)3 + 3Cu
400
Determine the empirical formula of 32.4% Al, 22.5% S, 45.1% O
Na2SO4
500
How many moles of Pb is 9.3 x 10^15 atoms of Pb?
1.5 x 10^-8 mol Pb
500
What is the percent composition of the compound formed when 29.0g Ag combines completely with 4.30 g S?
%Ag= 87.1% Ag
%S= 12.9% S
500
A precipitate of Barium Carbonate is formed when aqueous solutions of Barium chloride react with potassium carbonate. Write a balanced chemical equation for the double replacement reaction.
K2CO3(aq) + BaCl2(aq) --->2KCl(aq) + BaCO3(s)
500
Write and balance the following word problem:
Calcium carbonate will come apart when you heat it to leave calcium oxide and carbon dioxide.