Atomic Theory
Which model of the atom did J.J. Thomson create?
The raisin bun model.
Are groups on the periodic table columns or rows?
Columns
Molecular - two non metals
Ionic - a metal and a non metal
What type of chemical reaction is the following?
C + O2 --> CO2
How many molecules are there in one mole of water?
6.023x1023
Which statement did John Dalton coin?
Atoms cannot be created, destroyed, or divided.
This group on the periodic table are chemically inert.
Noble Gases (Group 18).
Write out the name for this compound - MgCl2
What type of reaction is the following reaction?
2 Ag + Cu(NO3)2 --> 2 AgNO3 + Cu
Single Replacement
Calculate the molar mass of zirconium oxide.
123.22 g/mol
Who developed the energy level theory?
Bohr
These group(s) on the periodic table are the transition metals.
Groups 3-12
Write out the name for this compound - N5O10
pentanitrogen decaoxide
What are the coefficients needed to balance the following reaction?
CH4 + O2 --> CO2 + H2O
1, 2, 1, 2
0.27 moles
Draw out the Bohr model of Nitrogen.
Show your teacher!
Determine how many protons, neutrons, and electrons are in a bromine atom.
Protons - 35
Neutrons - 45
Electron - 35
Write out the formula for the following name - platinum (IV) oxide
PtO2
Write out the products of this reaction:
Rh + FeO -->
Rh2O3 + Fe
Calculate the mass of 1.64 moles of chromium (III) nitride.
108.26 g
Draw out the Bohr model of a chlorine ion.
Show your teacher!
Explain what an isotope is.
An isotope is an element where the number of neutrons change, but the proton number stays the same.
Write out the formula for the following name - manganese (IV) silicate
Mg(SiO3)2
Write out the full BALANCED reaction:
Copper (II) sulphate reacts with potassium permanganate.
CuSO4 + 2 KMnO4 --> Cu(MnO4)2 + K2SO4
Calculate the number of molecules in 0.5 g of iron.
5.4x1021 molecules