Chemistry Unit 2

Test yourself for the Chemistry P2 exam!

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?
Isotopes have a different number of...
Neutrons
1 of 20
If there are extra neutrons in the nucleus of an atom, it may become unstable this results in...
Radioactivity
2 of 20
If the Ar of Magnesium is 24 what is the Mr of 2Mg?
24
3 of 20
If I want to work out the percentage of hydrogen in ammonia, what am I trying to work out?
Percentage composition
4 of 20
When trying to work out empirical formula, once I have divided each element by their Mr's, do I divide by the smallest value or largest?
Smallest
5 of 20
One reason why reactions never give 100% yield is because?
Some reactants/products could be lost
6 of 20
To increase the rate of a reaction I could increase concentration of the reaction?
True
7 of 20
An example of a slow reaction happening is...
Oxidation
8 of 20
For a successful collision to happen energy must be >activation energy?
True
9 of 20
Endothermic reactions...
Take in heat
10 of 20
An Na+ ion would...
Gain one electron
11 of 20
In a solution, if the metal is more reactive than hydrogen, what will form at the positive electrode?
Hydrogen
12 of 20
What is the name given to a substance which will neutralise an acid?
Base
13 of 20
I would use sulfuric acid to produce chloride salts?
False
14 of 20
What is the name given to a reaction when two solutions mix and a solid forms?
Precipitate
15 of 20
A reason why analytical techniques are used is because they require large amounts of the substance needed to be tested?
False
16 of 20
Which is best to use for paper chromatography?
Pencil
17 of 20
What number is used to define what a mole is?
Avogadro number
18 of 20
Ionic bonding is between a metal and a non-metal?
True
19 of 20
Graphite has no delocalised electrons therefore can not conduct electricity?
False
20 of 20

Other cards in this set

Card 2

Front

If there are extra neutrons in the nucleus of an atom, it may become unstable this results in...

Back

Radioactivity

Card 3

Front

If the Ar of Magnesium is 24 what is the Mr of 2Mg?

Back

Preview of the front of card 3

Card 4

Front

If I want to work out the percentage of hydrogen in ammonia, what am I trying to work out?

Back

Preview of the front of card 4

Card 5

Front

When trying to work out empirical formula, once I have divided each element by their Mr's, do I divide by the smallest value or largest?

Back

Preview of the front of card 5
View more cards

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Moonman

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Only one wrong woop! :PPP

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