Molecular Models Worksheet Page 7
ADVERTISEMENT
1
2
3
4
5
6
7
8
9do not accept reference to breaking bonds
do not accept MgCl
is a solid and HCl is a gas
2
1
[6]
M2.
(a)
all electrons correct (inner shell need not be shown)
three bond pairs and two electrons anywhere else
can use dots, crosses or e’s in any combination
1
(b)
covalent
accept phonetic spelling
do not accept convalent
1
[2]
M3.
(a)
LHS lithium + water
accept Li and H
O
2
accept hydrogen oxide for water
1
RHS hydrogen + lithium hydroxide
accept H
and LiOH
2
ignore attempts at balancing
ignore charges
1
(b)
Quality of written communication
One mark for the correct use of any
three of the terms atom, covalent,
bond(ing), saturated, hydrocarbon
or alkane
1
any three from:
Page 7
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education