Vocabulary
Chemical RXNs
Mole Calculations
% Composition
EmpiricalFormula
100
This word defines the starting compounds in a chemical reaction.
What are reactants?
100
Double Jeopardy ! What are the symbols for the SEVEN diatomic elements?
H O F Br I N Cl
100
How many moles are in 23 grams of Sodium?
1 mol
100
What is the formula for percent composition?
%Comp = Mass of element/mass of cmpd x 100
100
This is defined as the smallest whole number ratio of atoms in a compound.
What is empirical formula?
200
This word defines the substances that were created in a reaction.
What are products?
200
_ H2 + O2 -> 2 H2O What coefficient should go in front of Hydrogen? BONUS: What reaction type is this?
2 Synthesis
200
Double Jeopardy! How many moles are in 32 grams of O2?
1 mol
200
What is the % by mass of Oxygen in H2O ?
89%
200
What is the empirical formula of P2O8 ?
PO4
300
This term defines the amount of an element present in a compound using percentages.
What is Percent Composition?
300
Balance this reaction: C + H2 -> C2H6
2 C + 3 H2 -> C2H6
300
How many atoms are in 3 moles of Calcium?
18.06 x 10^23 atoms
300
What is the %COMPOSITION of Chlorine in sodium chloride?
61%
300
What is the empirical formula for tricarbon hexahydride ?
CH2
400
There are always 6.02 x 10^23 molecules, atoms, or formula units in one (1) of these.
What is a mole?
400
Double Jeopardy! Predict the products and balance: Copper plus Zinc(II) Sulfate
No Reaction
400
How many moles are in 12.04 x 10^23 molecules of sodium chloride?
2 mol
400
What is the percent by mass of Oxygen in lithium chloride?
0%
400
Double Jeopardy! True or False? H2O and H4O2 have the same empirical formula.
True
500
This law states that matter can not be created nor destroyed in a chemical reaction.
What is the Law of Conservation of Mass?
500
This reaction type always includes O2 as a reactant.
What is COMBUSTION?
500
What is the mass of 24.08 x 10^23 formula units of lithium chloride?
169.764 grams
500
TRIPLE JEOPARDY! What is the percent of H2O in the hydrate CuSO4 * 5 H2O
36%
500
TRIPLE JEOPARDY! Calculate the empirical formula for a compound containing 37.5% C, 12.5% H, and 50% O
CH4O
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