Ch 47-48 Period 2 and 3
問題一覧
1
Which of them have covalent bonds
B, C, Si
2
Arrange from the highest m.p. to the lowest (a. Beryllium , b. Boron, c. Carbon, d. Magnesium, e. Silicon, f. Phosphorus, g. Sulphur)
c e b a d g f
3
Soluble or insoluble in water?
If soluble, give the product formed.
State if vigorous
Na2O
NaOH, vigorous
4
Soluble or insoluble in water?
If soluble, give the product formed.
State if vigorous
MgO
Mg(OH)2
5
Soluble or insoluble in water?
If soluble, give the product formed.
State if vigorous
Al2O3
Insoluble
問題一覧
1
Which of them have covalent bonds
B, C, Si
2
Arrange from the highest m.p. to the lowest (a. Beryllium , b. Boron, c. Carbon, d. Magnesium, e. Silicon, f. Phosphorus, g. Sulphur)
c e b a d g f
3
Soluble or insoluble in water?
If soluble, give the product formed.
State if vigorous
Na2O
NaOH, vigorous
4
Soluble or insoluble in water?
If soluble, give the product formed.
State if vigorous
MgO
Mg(OH)2
5
Soluble or insoluble in water?
If soluble, give the product formed.
State if vigorous
Al2O3
Insoluble