Classify reactions
What is a single replacement reaction?
Reactions where a single element reacts with a compound and displaces another element from that compound.
What is the balanced coefficients of Na+F2 ———> NaF ?
2,1,2
What is the Avagadro’s number?
6.02 x 1023
What is a mole ratio?
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.
What does Li stand for?
Lithium
What are products?
Substances on the right side of the arrow
What is the purpose of the coefficients?
To tell us the number of molecules
What does Mole mean?
The number of atoms of that element equal to the number of atoms
How do you find percentage yield?
The ratio of the actual yield to the theoretical yield multiplied by 100
how many groups are on the periodic table?
18
What would QT look like as a Decomposition replacement?
QT———> Q + T
Is C + O2 > CO2 balanced?
No
What is the molar mass?
The mass in grams of 1 mole of a substance
If you have an actual yield of 72.3g of product and the theoretical yield of 78.7g what is your % yield?
91.8%
how many different elements are there?
118
What are 3 things in the fire triangle?
oxygen, fuel, and heat
What are the coefficients of K + l2 -> KL?
2,1,2
How do you covert from atoms to moles?
Divide the number of particles by Avogadro’s number to determine the number of moles.
What is the limiting reactant?
the reactant that limits the amounts of the other reactants that can combine and the amount of product that can form in a chemical reaction
What are the 3 types of elements?
These three groups are: metals, nonmetals, and inert gases
What is a word equation?
An equation in which the reactants and products in a chemical reaction are represented by words
What is a subscript?
A number written slightly below and to the right of a chemical symbol that shows how many atoms of a an element are in a compound.
What is the molar mass of Ca(PO4)2?
310 g/mol
Given the Balanced Reaction:
2Al2O3(l) → 4Al(s) + 3O2(g)
How many moles of O2 will be formed if 10 moles of Al2O3 are used?
15 moles of O2
What are the rows called?
Periods