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Atomic Structure
Ionic Formulae
Neutralisation
Rates of Reaction
Extra
100
What is the number of electrons in the outer shell of Carbon?
4
100
What is the formula of calcium nitrate?
Ca(NO3)2
100
All metal oxides and hydroxides are bases? True or False
True
100
temperature, concentration, catalyst, surface area
What are the 4 factors which change the rate of a reaction
100
Which has more mass - Cl35 or Cl37?
Cl37
200
What is the electron arrangement of the Sulfide ion?
2,8,8
200
What is the name and formula of the salt made when sulfuric acid and magnesium hydroxide react?
magnesium sulfate, MgSO4
200
What is the colour of pH paper in a weak acid?
orange
200
What is the result of increasing the concentration of acid when reacting Mg ribbon with acid?
The magnesium will disappear in much less time
300
How many electrons does Aluminium lose to bocome the Aluminium ion, and what is the charge on the ion?
3, 3+
300
Write the symbol equation for sodium carbonate reacting with hydrochloric acid.
Na2CO3 + 2HCl ---------> 2NaCl + H20 + CO2
300
copper chloride
What is the salt formed when copper carbonate reacts with hydrochloric acid?
300
Explain why increasing the temperature of a reaction will increase the rate at which reactants are used up
Increasing the temperature increases the Ave KE of the particles so they move more quickly. Therefore they collide more frequently AND with more force. Therefore more collisions will have enough energy to form products so the reactants will be used up more quickly
400
What do the oxide ion, the Magnesium ion and Neon all have in common?
They all have electron configuration 2,8
400
Write the equation for the reaction between calcium hydroxide and nitric acid
Ca(OH)2 + 2HNO3 -------> Ca(NO3)2 + 2H2O
400
calcium hydroxide and nitric acid
What is the the simplest way to make calcium nitrate if you have to use an acid and a base?
500
What do Cl35 and Cl37 have in common, and how are they different?
Both have 17 protons but Cl35 has 18 neutrons and Cl37 has 20 neutrons.
500
A green solid and a clear liquid react together to form a blue solution and a gas. Name all compounds and write a balanced equation
Copper carbonate and sulfuric or hydrochloric acid copper sulfate or chloride and carbon dioxide and water CuCO3 + 2HCl --------> CuCl2 + CO2 +H2O or CuCO3 + H2SO4 --------> CuSO4 + CO2 +H2O
500
A white powder was spilled on the bench. To identify the powder a student added water and acid.They also had pH paper. The powder was identified to be magnesium hydroxide. Describe the steps and observations made to come to this conclusion.
put small sample in water - does not dissolve. Small sample rubbed on wet Universal pH paper - paper goes blue. Sample in acid disappears, no fizzing