9443439
Beschreibung
Quiz von Niamh Ryan, aktualisiert more than 1 year ago
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Erstellt von Niamh Ryan
vor etwa 7 Jahre
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Frage 1
Frage
Calcium carbonate powder reacts slower than calcium carbonate lumps
Antworten
- True
- False
Frage 2
Antworten
-
Reactants
-
Products
-
Activation energy
-
Reaction coordinate
-
Enthalpy
Frage 3
Frage
Select the options which result in a faster rate of reaction
Antworten
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High temperature
-
Low concentration
-
High pressure in a reaction involving liquids and solids
-
Large particles
-
A reaction with a low activation energy
Frage 4
Frage
Catalysts always speed up the rate of reaction
Antworten
- True
- False
Frage 5
Frage
The enzyme used to produce alcohol is called [blank_start]yeast[blank_end]. The part of the enzyme that fits into the substrate is called the active site.
Antworten
-
yeast
Frage 6
Frage
Potassium is used in catalytic converters in cars.
Antworten
- True
- False
Frage 7
Frage
Using a catalyst reduces the overall energy change of a reaction.
Antworten
- True
- False
Frage 8
Frage
One enzyme can catalyse more than one reaction
Antworten
- True
- False
Frage 9
Frage
A catalyst can be reused.
Antworten
- True
- False
Frage 10
Frage
Hydrogen peroxide decomposes naturally to give...
Antworten
-
Water and oxygen
-
Hydrogen and oxygen
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