Atomic structure
Formula writing
balancing
general equations
Periodic table
100
The positive particle in an atom
What is a proton?
100
The ion formed when an atom gains an electron
What is an anion or negative ion?
100
the law stating that the mass of the reactants = the mass of the products
What is the Law of Conservation of Mass?
100
The reaction H+ + OH- —> H2O
What is neutralisation?
100
The name of the group 1 elements
What are the alkali metals?
200
The number of protons in an atom’s nucleus is known as this.
what is the atomic number
200
The formula of aluminium oxide
What is Al2O3 ?
200
The number of hydrogen atoms on each side of this balanced equation: 2H2 + O2 —> 2H2O
What is four?
200
The products of the reaction of sodium hydroxide and sulfuric acid
What are sodium sulfate and water?
200
The name of the group of unreactive elements.
What are the noble gases?
300
Carbon -12 and carbon-14 are examples of
What are isotopes
300
The formula of magnesium hydroxide.
What is Mg(OH)2 ?
300
The coefficients needed to balance this question.
CH4 + O2 —> CO2 + H2O
1: 2 : 1 : 2
300
The products of the reaction when zinc carbonate is heated.
What are zinc oxide and carbon dioxide?
300
The elements like silicon that have properties of both metals and non-metals
What are the semi-metals or metalloids?
400
The scientist who proposed that most of an atom is empty space.
Who is Rutherford?
400
The chemical formula for dinitrogen tetroxide
What is N2O4 ?
400
The coefficients needed to balance this equation
Zn + HCl —> ZnCl2 + H2
What is 1;2;1;1
400
The reactants needed to produce the salt iron(II) nitrate, carbon dioxide and water.
What are iron(II) carbonate and nitric acid?
400
The respective pH of tomatoes and drain cleaner
What is 4 and 14?
500
The number of neutrons in
What is 13
500
The name of this compound, (NH4)2CO3
What is ammonium carbonate?
500
The coefficients needed to balance the following equation?
C3H8 + O2 —> CO2 + H2O
What is 1:5 :3:4
500
The precipitate formed when potassium iodide and lead(II) nitrate are mixed. Remember all nitrates are soluble.
What is lead(II) iodide?
500
The typical pH of a weak acid
What is 4-6?