Miscellaneous

Question 1

In Rutherford’s experiment, what was fired at gold foil?

Answer 1

Alpha particles

Question 2

How much cm3 is 1 litre?
-how much dm3 is 1 litre?

Answer 2

1000cm3 = 1dm3 = 1L

Question 3

One mole of a substance is equal to its ______ in grams

Answer 3

RFM

Question 4

What model atom did Dalton create?

Answer 4

Spherical atom

Question 5

Who created the plum pudding model of the atom?

Answer 5

J.J.Thompson

Question 6

Name 2 advantages of using a pH probe over a universal indicator

Answer 6

-more precise
-does not rely on interpretation of results

Question 7

What colour does litmus paper turn in the presence of:
-acids
-alkalis

Answer 7

Acid) red
Alkali) blue

Question 8

What colour does phenolphthalein turn in the presence of:
-acids
-alkalis

Answer 8

Acid) colourless
Alkali) pink

Question 9

What colour does methyl ornage turn in the presence of:
-acids
-alkalis

Answer 9

Acid) red
Alkali) yellow

Question 10

What happens in oxidation?

Answer 10

Loss of electrons, gain of oxygens

Question 11

What happens in reduction?

Answer 11

Gain of electrons, loss of oxygen

Question 12

What are the 3 main steps when making a soluble salt?

Answer 12

Neutralisation, filtration, evaporation (or crystallisation)