Types of Reaction
Classify this chemical reaction: C(s) + O2(g) → CO2(g)
synthesis/combination reaction
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.
mole ratio
6.02x1023
Avogadro's number
When one or more substances are changed into new substances is called this.
chemical reaction
Number that goes in front of substances in chemical equation
Coefficient
Classify this reaction: CaCO3(s) → CaO(s) + CO2(g)
decomposition reaction
2Mg +O2 --> 2MgO How many moles of magnesium oxide are produced from 1.2 moles of magnesium?
1.2 mol MgO
1 mole element = ___________ of element
6.02x1023 atoms
When the number of atoms is equal on each side we say that the equation is this.
balanced
Balance the following equation.
Li + Br2 --> LiBr
2 Li + Br2 --> 2 LiBr
Classify this reaction:Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)
single replacement reaction
2K + Cl2 ---> 2KCl
How many grams of Cl2 do we need to react with 125 g of K?
MM of K: 39.10 g/mol
MM of Cl2: 70.90 g/mol
113 g Cl2
125g K x (1 mol K / 39.10 g K) x (1 mol Cl2 / 2 mol K) x (70.90 g Cl2 / 1 mol Cl2) = 113 g Cl2
To convert between grams and mole, what do we use?
molar mass
This list allows us to predict single replacement reactions
reactivity series
Balance the following chemical equation.
Fe + O2 --> Fe2O3
4 Fe + 3O2 --> 2 Fe2O3
Classify this reaction:
HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)
double replacement
g to mol reactant to mol product to g of product
whichever reactant produces the lesser amount of product is the limiting reactant
How many moles are there in 1.25x1023 atoms of Fe?
1.25x1023 atoms Fe x ( 1mole Fe / 6.02x1023 atoms Fe) = 0.208 mole Fe
This term refers to a substance that is soluble and dissolved in water
aqueous solution
Balance the following chemical equation:
Na + H2O --> NaOH + H2
Na + 2 H2O --> 2 NaOH + H2
What are always the two products of acid base reaction?
salt and water
What is chemist's favorite plant?
stoichiome-tree :)
How many oxygen atoms are there in 1.30 mole of Ag2C2O4?
1.30 mole Ag2C2O4 x ( 4 mol O / 1 mole Ag2C2O4 ) x (6.02x1023 atoms O / 1 mol O) = 3.13x1024 atoms O
When an element occurs naturally with a subscript of 2 it is called this.
diatomic element
Balance the following equation.
(NH4)3PO4 + Mg(NO3)2 --> Mg3(PO4)2 + NH4NO3
2 (NH4)3PO4 + 3 Mg(NO3)2 --> Mg3(PO4)2 + 6 NH4NO3