Atoms
Formula
Organic chemistry
Bonding
Calculations
100
What is the relative mass of a proton?
1
100
What is the formula of sodium oxide?
Na2O
100
What type of compounds have a general formula of CnH2n+2? (be specific)
Aliphatic alkanes
100
What type of attraction forms bonds?
electrostatic attraction
100
How many particles are in 1 mole? (4 significant figures)
6.022 x 1023
200
How many protons are in an atom of nitrogen-15?
8
200
What is the formula of magnesium nitrite?
Mg(NO2)2
200
What type of compounds are unsaturated?
Alkenes (and alkynes)
200
What type of bonding involves shared electrons?
Covalent
200
What is the molar mass of sodium chloride?
58.44g/mol
300
How many electrons can fill the third shell of an atom?
18
300
What is the formula of ammonium acetate?
NH4CH3COO
300
What is the name of this stucture?
3-methyl pentane
300
What type of bonding involves electrons becoming delocalised?
Metallic
300
How many moles are in 36g of water?
2moles
400
What is the A-number of an isotope of boron with 5 neutrons?
10
400
What is the formula of potassium chromate?
K2CrO4
400
What is the name of this structure?
trans-1,2-dichloroethene
400
What type of bonding exists if the elements' electronegativity differs by more than 2?
Ionic
400
What is the mass of 0.15moles of methane?
2.4g
500
What makes up the majority of an atom?
space
500
What is the formula of aluminium nitride
AlN
500
Draw the structure of 3-bromo-1,4-dimethyl benzene.
500
What type of bonding exists in sodium carbonate?
Ionic and covalent
500
How many oxygen atoms are in 2.50g of carbon dioxide?
6.84x1022 atoms