Chemical Reactions - Updated 2023 Question Preview (ID: 38094)


S2 Chemistry - Chemical Reactions Basic Principles And Some S1 Revision. TEACHERS: click here for quick copy question ID numbers.

Salt can be separated from water by
a) Evaporation
b) Electrolysis
c) Filtration
d) Chromatography

When two or more elements chemicall combine a __________ is formed
a) Mixture
b) Solution
c) Compound
d) Solvent

Magnesium hydroxide contains the elements
a) magnesium and hydroxide
b) magnesium and water
c) magnesium and hydrogen
d) magnesium hydrogen and oxygen

Chalk could be separated from water by
a) Filtration
b) Distillation
c) Electrolysis
d) Chromatography

A compound containing only magnesium and sulfur would be called
a) Magnesium sulfide
b) Magnesium sulfate
c) Magnesium sulfite
d) Sulfur magneside

Iron and sulfur can be separated by
a) Filtration
b) Electrolysis
c) Distillation
d) A magnet

What's the main difference between a compound and a mixture
a) The elements in a compound are chemically joined
b) The elements in a mixture are chemically joined
c) They are always different colours
d) It is easier to separate the elements in a compound

When two solutions react to make an insoluble solid it is called
a) Effervescence
b) Decomposition
c) Precipitation
d) Fred

Which of the following is not a chemical reaction?
a) Water boiling
b) Vinegar and baking soda
c) Extracting copper from copper oxide
d) Burning hydrogen gas to make water

In a salt solution the salt which is added to the water is
a) the solute
b) the solvent
c) the solution
d) insoluble

Name the element with atomic number 47
a) Angium
b) Gold
c) Silver
d) Aluminium

Bubbling or fizzing during a chemical reaction is called
a) Effervence
b) Efervescence
c) Effervescence
d) Effervessence

What always happens in a chemical reaction?
a) A new substance is formed
b) There is a colour change
c) Precipitation
d) Effervescence

Play Games with the Questions above at ReviewGameZone.com
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 38094 in the upper right hand corner or click here.

TEACHERS / EDUCATORS
Log In
| Sign Up / Register