Questions 21 - 31 is from the youtube clip above. You can watch the clip as many times as you need to.
Question 15
15.
What type of reaction takes place when aluminum combines with iodine
Question 16
16.
Give the name of the reaction that produces oxygen and glucose
Question 17
17.
What type reaction is the opposite of synthesis a reaction
Question 18
18.
Write out the names of the products when hydrogen peroxide decomposes
Question 19
19.
Briefly explain how a decomposition reaction is used in airbags in cars
Question 20
20.
During the single displacement reaction of copper with silver nitrate. Name two things that you see that is evidence that a chemical reaction takes place
Question 21
21.
Describe how a double displacement reaction takes place
Question 22
22.
Which two elements swop places when potassium iodide is added to lead (ii) nitrate?
Identify this reaction:
KClO3 → KCl + O2
Double displacement
Combustion
Synthesis
Decomposition
Identify this reaction:
Cr + Fe(NO3)2 → Fe + Cr(NO3)3
Combustion
Single displacement
Double displacement
Decomposition
Which of the following could be the products of a single displacement reaction?
H2O
CO2 and H2O
Cu and FeCl2
Mg(OH)2 and CaCl2
Of the balanced chemical equations below, which one most correctly represents a combustion reaction?
2 N2 + 3 H2 → 2 NH3
CaO + H2O → Ca(OH)2
2 Mg + O2 → 2 MgO
2 CH4 + 4 O2 → 2 CO2 + 4 H2O
Of the reactions below, which one is a double-replacement reaction?
2 Mg + O2 → 2 MgO
2 N2 + 3 H2 → 2 NH3
Cd(NO3)2 + Na2S → CdS + 2 NaNO3
NH4Cl → NH3 + HCl
Which of the following reactants could cause a combustion reaction?
Cu and FeNO3
CH3OH and O2
KMnO4 and HCl
Mg and Cl
Which of the following are decomposition reactions?
CH4 (g) + O2(g) → CO2(g) + H2O (l)
CaO (s) + CO2(g) → CaCO3 (s)
Mg (s) + O2(g) → MgO (s)
PbCO3 (s) → PbO (s) + CO2 (g)
All are decomposition reactions
2, 3 and 4
2 and 3
4 only
Which of the following is the general formula for a decomposition reaction?
AB + CD --> AD + CB
AB + C --> A + CB
A + B --> AB
AB --> A + B
Balance the equation and identify the reaction
CH4 + O2 --> H2O + CO2
CH4 + 2O2 --> 2 H2O + CO2 combustion
CH4 + O2 --> H2O + CO2 synthesis
CH4 + 2 O2 --> 2H2O + CO2 double displacement
2CH4 + 2O2 --> H2O + CO2 combustion
Identify this reaction:
H2SO4 + Fe -->H2 + FeSO4
single displacement
double displacement
combustion
synthesis
A double displacement reaction occurs when different atoms in two different compounds trade places
True
False
During a decomposition reaction two or more elements or compounds combine to make a more complex substance
True
False
A synthesis reaction always results in a single element
True
False
During a combustion reaction, heat and light is likely to be given off.