Just a thought :)

BONDING AND FORMULAE

3 – Understanding chemical formulae
1

Complete the table below, giving the number, type and total number of atoms for each substance.

Substance

Number and type of atoms

a

Mg(OH)2

d

2 NaOH

e

Al2(SO4)3

f

Mn3(PO4)2

g

5 Pb(OH)2

h

KMnO4

i

NH4NO3

j

NaClO3

k

Zn(C2H3O2)2

l

Total atoms

Na2SO4

c

/ 24

H2O

b

2 marks for each correct row

6 C6H12O6

2 Describe what the following chemical symbols and formulae represent.
Symbol or formulae a

OH1-

b

Polyatomic ion (hydroxide). One atom of oxygen bonded to one atom of hydrogen, with an overall charge of –1.

2 marks for each correct answer 3 CaCl2

d

/ 6

CO2

c

Description

Al(NO3)3
TOTAL
/ 30

16

Quick Science Tests – Chemistry 2

© Michael Profitt and Blake Education 2010

zthese lyrics show that acting a different way to get boys to like you is stupid and wearing push up bras and being perfect is stupid and thats not how girls should be, they should be themselfs around boys and their friendsthese lyrics show that acting a different way to get boys to like you is stupid and wearing push up bras and being perfect is stupid and thats not how girls should be, they should be themselfs around boys and their friendsthese lyrics show that acting a different way to get boys to like you is stupid and wearing push up bras and being perfect is stupid and thats not how girls should be, they should be themselfs around boys and their friendsthese lyrics show that acting a different way to get boys to like you is stupid and wearing push up bras and being perfect is stupid and thats not how girls should be, they should be themselfs around boys and their friendsthese lyrics show that acting a different way to get boys to like you is stupid and wearing push up bras and being perfect is stupid and thats not how girls should be, they should be themselfs around boys and their