Module 2 Revision Notes Flashcards
What are the four general chemical equations
Combination/synthesis
Decomposition
Single Replacement
Double Replacement
Combination reaction
A + B –> AB
Element + Oxygen –> Element Oxide
Decomposition
AB –> A+ B
Metal + Carbonate –> Metal Oxide + Carbon Dioxide
Silver Halide –> Silver + Halogen
Single Replacement
A + BC –>AC + B
Active metal + Acid –> Salt + Hydrogen Gas
Active metal + water –> Metal hydroxide + hydrogen gas
Active metal + less active metal solution –> less active metal + active metal solution
Double Replacement
AB + CD –> AD + CB
Acid + Base –> Salt + Water
Acid + Carbonate –> Salt + Carbon Dioxide + Water
Hydrocarbon + Oxygen –> Carbon dioxide + water
What are the 6 acids
Hydrochloric acid
Sulfuric acid
Nitric acid
Carbonic acid
Phosphate acid
Acetic acid
Hydrochloric acid
HCl
Sulfuric acid
H2SO4
Nitric acid
HNO3
Carbonate acid
H2CO3
Phosphoric acid
H3PO4
Acetic acid
CH3COOH
What are the five bases
Sodium hydroxide
Calcium hydroxide
Barium hydroxide
Calcium oxide
Sodium oxide
Sodium hydroxide
NaOH
Calcium hydroxide
Ca(OH)2
Barium hydroxide
Ba(OH)2
Calcium oxide
CaO
Sodium oxide
Na2O
What is the standard atom?
Carbon-12 isotope
How much does one C-12 atom weigh?
1.933 x 10^-23
What is Avogadro’s number and what does it represent
6.022 x 10^23 mol^-1
represents the number of atoms in exactly 12 grams of the c-12 isotope.
molar volume formula
n = volume of gas (L) / molar volume (Lmol^-1)
what is the concentration formula
c = n/V
what to remember when calculating g/g
mass is always conserved, therefore mass of substance on top/ mass + mass on top.
