Who's who?
This reaction type involves one compound breaking down into two or more products.
Decomposition
The vertical columns on the periodic table are called
Groups/Families
1 mole of any element contains this many particles
6.022×10^23 – Avogadro’s number
Balance: H₂ + O₂ → H₂O
2H₂ + O₂ → 2H₂O
What is the molar mass of H₂O?
18.02 g/mol
In this reaction, a single element replaces another in a compound.
Single replacement reaction
Elements in the same group have the same number of these
Valence electrons
Convert 2.0 moles of H₂O to molecules
1.2×10^24 molecules
Balance: C₃H₈ + O₂ → CO₂ + H₂O
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
What is the molar mass of CO₂?
44.01 g/mol
This reaction occurs when two ionic compounds swap partners
Double replacement reaction
What is the mass, atomic number and name for the element Ir?
192 amu, 77, Iridium
How many moles are in 18.0 g of H₂O?
1 mol
What must be equal on both sides of a balanced equation?
Number of atoms of each element
What is the molar mass of NaOH?
40.00 g/mol
What are ALWAYS the products of a combustion reaction?
Water and carbon dioxide
The atomic radius increases in which direction on the periodic table?
Down and to the left.
If you have 3.01×10^23 molecules of CO₂, how many moles is that?
0.5 moles
Balance: Al + O₂ → Al₂O₃
4Al + 3O₂ → 2Al₂O₃
What is the molar mass of Ca₃(PO₄)₂?
310.18 g/mol
Identify this reaction: Al + Fe₂O₃ → Fe + Al₂O₃
Single Replacement Reaction
What is the trend for ionization energy across a period?
It increases from left to right
A sample contains 3.011×10^24 atoms of Fe. How many grams of Fe is this?
278 g Fe
Balance and classify: Fe₂O₃ + C → Fe + CO₂
Fe₂O₃ + 3C → 2Fe + 3CO₂; single replacement
What is the molar mass of Fe₂O₃?
159.69 g/mol