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Q 1/32
Score 0
What name is given to a reaction which transfers energy from the surroundings?
60
endothermic
exothermic
Q 2/32
Score 0
What is a reaction profile?
60
diagram showing what reactants are reacting
diagram showing how the energy changes in a reaction
diagram showing what by-products are made
diagram showing what products are formed
32 questions
Q.
What name is given to a reaction which transfers energy from the surroundings?
1
60 sec
Q.
What is a reaction profile?
2
60 sec
Q.
What is the term used to describe the minimum amount of energy required before a collision will result in a reaction?
3
60 sec
Q.
What is the rate of a reaction?
4
60 sec
Q.
Which of these is NOT a way you can measure the rate of a reaction that produces a gas?
5
60 sec
Q.
What effect does increasing concentration have on the rate of reaction?
6
60 sec
Q.
Why does increasing surface area increase the rate of reaction?
7
60 sec
Q.
How do catalysts increase the rate of a reaction?
8
60 sec
Q.
What term is used to describe the point in a reversible reaction when the rate of the forward and reverse reactions are the same?
9
60 sec
Q.
What term is used to describe hydrocarbons that only have single bonds?
10
60 sec
Q.
11
60 sec
Q.
How does boiling point of hydrocarbons depend on the chain length?
12
60 sec
Q.
What are the products of cracking?
13
60 sec
Q.
What name is given to hydrocarbons with a carbon=carbon double bond?
14
60 sec
Q.
Which are more reactive, alkanes or alkenes?
15
60 sec
Q.
How can you test for alkenes?
16
60 sec
Q.
What is the name of the process for separating coloured mixtures by their solubility?
17
60 sec
Q.
What is the test for hydrogen?
18
60 sec
Q.
What is the test for chlorine?
19
60 sec
Q.
How many spots will a pure compound produce on a chromatogram?
20
60 sec
Q.
What was the early atmosphere mostly composed of?
21
60 sec
Q.
What was the impact of life appearing on Earth on the oxygen in the early atmosphere?
22
60 sec
Q.
Complete current composition of the atmosphere: approximately 80% ____1____, 20% ___2___, and trace amounts of other gases such as _____3_____, water vapour, and noble gases
23
60 sec
Q.
What is a greenhouse gas?
24
60 sec
Q.
Which of these is NOT a way in which human activities have increased the amount of atmospheric methane?
25
60 sec
Q.
Which of these things is NOT a direct danger associated with carbon monoxide gas?
26
60 sec
Q.
How are atmospheric particulates formed?
27
60 sec
Q.
Which of these things is NOT a direct danger associated with sulfur dioxide and oxides of nitrogen?
28
60 sec
Q.
Which of these is NOT an examples of a natural resource?
29
60 sec
Q.
What is sterilisation?
30
60 sec
Q.
What is the name of the process for separating the waste water into sludge and effluent?
