Metals(basics)

Question 1

Transition metal properties

Answer 1

High melting + boiling points
Solid at room temperature
Heat + electricity conductor

Question 2

many transition metals are catalysts. what is a catalysts

Answer 2

something that speeds up rate of reaction without being used in the process

Question 3

what is an alloy

Answer 3

mixture of different elements when one of them is a metal.

Question 4

why are alloys useful

Answer 4

used to strengthen metals by mixing with other elements

Question 5

explain a displacement reaction

Answer 5

in a displacement reaction, a more reactive metal displaces a less reactive metal from its salt.

Question 6

observations when displacement takes place

Answer 6

colour change
ppt formed
gas given off
sound
heat

Question 7

what is a redox reaction?

Answer 7

one species is oxidised, the other is reduced

Question 8

reduction

Answer 8

loss of oxygen
gain of electrons

Question 9

oxidation

Answer 9

gain of oxygen
loss of electrons

Question 10

extraction process for metals more reactive than carbon

Answer 10

electrolysis

Question 11

extraction process for metals less reactive than carbon

Answer 11

reduction with carbon

Question 12

extraction process for metals less reactive than hydrogen

Answer 12

none. they are already found in their pure form

Question 13

tests for metal ions

Answer 13

when sodium hydroxide is added:
1. Copper (II) ions = blue ppt
2. Iron (II) ions = green ppt
3. Iron (III) ions = brown ppt

Question 14

state the order of the reactivity series:

Answer 14

Potassium
Sodium
Calcium
Magnesium
Aluminium
zync
carbon
iron
Tin
hydrogen
copper
silver
gold

Question 15

reactivity series acronym

Answer 15

Please
stop
calling
my
aluminium
zebra
(carbon)
in
the
class
sliver
gold