Worksheets12 Chem 3-2 L3a start quiz
Total questions: 15
Worksheet time: 13mins
What happens to the equilibrium if we add methane (CH4)?
It shifts left, towards the reactants
It shifts right, towards the products
It does not shift
What happens to the equilibrium if we remove water (H2O)?
It shifts left, towards the reactants
It shifts right, towards the products
It does not shift
What happens to the equilibrium if we remove heat?
It shifts left, towards the reactants
It shifts right, towards the products
It does not shift
Increasing volume of container will
CoCI42- +6H2O →Co(H2O)62+ + 4CI-
What will happen when CI- ions are added?
Position of equilibrium will shift to left and become more pink
Color of system will turn to all pink
Concentration of reactants and products remain unchanged
Position of equilibrium will shift to left to reduce the added CI- ions
What is the oxidation state of Cl in ClO- ?
0
+1
-1
+2
What is the oxidation state of Cu in Cu2+?
-1
-2
+2
0
What is the oxidation state of H in H2?
+2
+1
0
None of the above
S in HSO4- ?
+5
-6
+6
+2
Is this oxidation or reduction: SO42- becomes SO2
Oxidation
Reduction
Neither
Both
What type of reaction is this: C2H2 becomes C2H6
Reduction
Oxidation
Neither
Combustion
Which statement is true of a reducing agent?
It is oxidised as it gains electrons.
It is oxidised as it loses electrons.
It is reduced as it gains electrons.
It is reduced as it loses electrons.
When a gas changes iron(III) oxide to iron(II) oxide, the gas is
a combustible gas
a reducing agent
an inert gas
an oxidising agent
In a redox reaction, spectator ions...
become oxidised
become reduced
remain unchanged
What is the oxidizing agent of this reaction?
3Mg + N2 → Mg3N2
Mg
N2
Mg3N2
MgN
