Some students who looked at Figures 4 and 5 did not realise that they applied to all metals. Instead, they thought that the
figures only showed a metal from Group 1 of the Periodic Table.
Suggest why they thought this, and describe changes the students
might have made so that the diagrams showed a metal from
Group 2
(5 marks)

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.      

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !