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WorksheetsChemistry
Total questions: 12
Worksheet time: 5mins
______________ reacts violently with water
sodium chloride
sodium
pottasium
sodium sulphide
_________ represents one molecule of a compound and ______ is the shorthand language of scientists
(a)
Name 3 elements with valency 2
zinc
lead
pottasium
calcium
sodium
The force of cohesion between molecules of a liquid is less strong than a solid
'false
true
The formula for phosphurus chloride is
Ph3Cl2
P2Cl3
PCl3
PCl2
Write the Balances Equation for Ca(CO3)2 = CaO +CO2 and name the reactant
(a)
The number of Oxygen and Nitrogen atoms in 4 Molecules of copper nitrate
24
7x4
26
2x19
What are Radicals ? ( pls use textbook definition only)
(a)
The valency of Sulphate is --------- and the elements present are
(a)
The formula of calcium nitrate is
CANo3
Ca(NO)2
CAN0
Ca(NO3 )2
Photographic film have a coating of a compound called
(a)
Glass is a solid true or false
