periodicity reactions

Question 1

which molecule is the most reactive out of sodium, magnesium and aluminium and why ?

Answer 1

sodium because it takes more energy to lose magnesium two electrons than to lose one electron

Question 2

how does sodium react with cold water

Answer 2

vigorously, to form a molten which fizzes and produces H2 to form a stron alkline solution

Question 3

what is the equation for the reaction of sodium with cold water

Answer 3

2Na(s) + 2H20(l) =) 2NaOH(aq) +H2(g)

Question 4

how doea magnesium react with cold water

Answer 4

slowly, to form a weekly alkline solution

Question 5

write an equation for the reaction of magnesium with cold water

Answer 5

Mg(s) + 2H2O(l) =) Mg(OH)2(aq) + H2(g)

Question 6

how does magnesium react with steam

Answer 6

faster than with cold water, as it has more energy

Question 7

write an equation for the reaction of magnesium with steam

Answer 7

Mg(s) + H2O(g) =) MgO(S) + H2(g)