reactions of period 3 elements with water Flashcards
1
Q
how does Na react with water ?
A
- reacts vigorously with cold water
2
Q
state the equation of Na and water ?
A
2 Na (aq) + 2H2O (l) –> 2NaOH (aq) + H2 (g)
3
Q
how can we prove Hydrogen gas has been produced ?
A
- squeaky pop test
- place an ignited splint next to the hydrogen gas and you should here a pop sound
4
Q
how does magnesium react with cold water ?
A
- Mg reacts very slowly with cold water
5
Q
state the equation for the reaction of magnesium and cold water ?
A
Mg (s) + 2 H2O (l) –> Mg(OH)2 (aq) + H2 (g)
6
Q
what can magnesium react with to form magnesium oxide ?
A
- steam
7
Q
what is the equation for the reaction of Mg and steam ?
A
Mg (s) + H2O (g) –> MgO (s) + H2 (g)
