1. Connect 4
Change the terms in the following template to customize Connect 4 for any topic.
You will need to copy one copy of one of the two templates (this is the game board) and two different colored copies of the second template page (these will be cut out to make the colored chips played by each player).

2. What is the unit for an amount of substance?
Define the relative atomic mass of an element
What does conservation of mass mean?
What is empirical formula?
Give two units for concentration of solution
Are the solvent particles less crowded in a dilute or concentrated solution?
Calculate the volume of a 2mol/dm3
Solution that contains 0.5mol of solute
Explain why medicines need to be diluted?
2.4g of carbon is burned in air forming 8.8g of CO2. What mass of Oxygen is gained?
Name two pieces of glassware used to measure liquids when investigating a pH curve
Why is a single indicator used in titrations?
Why are several consistent readings needed in titrations?
If you were to dilute 10Cm3
of a 0.5mol/dm3
solution to a 0.1 mol/dm3
solution how much water would you add?
Give two ways to measure the volume of gas produced in a reaction
How could you tell from an equation that the reaction is reversible?
What is a limiting reactant?
What happens to the concentrations of the reacting substances when a reversible reaction reaches equilibrium?
Describe a non-food use of weak acids
Name the three raw materials used in the Contact process
Describe the test for sulfate ions
Describe and explain the four state symbols
What happens to the pH when an acid is added to an alkali?
What is a precipitation reaction?
What is a spectator ion?

3. During a reaction the total mass stays the same g/dm3 and mol/dm3
The mole
The average mass of the element compared to the mass of ½ of an atom of carbon - 12
During a reaction the total mass stays the same
A formula showing the simplest whole number ratio of each type of atom in a compound
g/dm3 and mol/dm3
Dilute
0.5/2=0.25dm3
To avoid overdoses
=6.4g
Burette and pipette
Single indicators give a sudden rather than gradual colour change
To identify and remove any anomalous results
40Cm3
Gas syringe
Upturned measuring cylinder
Upturned burette
The equation would have the reversible symbol not just an arrow
The reactant that is all used up at the end of a reaction
Their concentrations remain constant
Limescale descaler
Sulfur
Air
Water
Add hydrochloric acid, then add barium chloride. If there is a precipitate of barium sulfate, there are sulfate ions
(s) Solid
(l) Liquid
(g) Gas
(aq) Aqueous (or dissolved in water)
It goes down
A reaction between two solutions that forms a solid
Ions that do not take pat in the reaction. They form a soluble product