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WorksheetsDiversity - Chemical properties
Total questions: 24
Worksheet time: 14mins
Which of the following are examples of element(s)?
Carbon dioxide
Nitrogen
Silver
Copper
Elements can be classified in the Periodic Table
by metals and non-metals
by their appearance
by chemical properties
by physical properties
Elements in the same column are in the same group. They have similar chemical properties.
True
False
Elements in the same row are in the same period. They change from metallic properties (left) to non-metallic properties (right).
True
False
Which of the following is/are compounds?
Water
Oxygen
Sugar
Nitrogen dioxide
A mixture consist of two or more pure substances which are chemically combined together.
True
False
A ________________ is the substance that dissolves in a solvent.
solution
residue
filtrate
solute
A suspension is a mixture in which __________________ substances are suspended in a liquid or gas.
transparent
soluble
translucent
insoluble
The following are examples of suspensions:
Antibiotics
Salt water
Orange juice with pulps
Correction fluid
The following factors affect the solubility of a solute in a solvent except:
Temperature
Type of solute
Type of solvent
Surface area/ particle size
The following factors affects the rate of dissolving:
Surface area/ particle size
Type of beaker
Rate of stirring
Temperature
Which of the following substances cannot be broken down into simpler substances by chemical processes (e.g. electricity)?
neon
water
carbon dioxide
sodium chloride
Which of the following shows the property of a mixture?
seawater can be separated into salt and
water easily by physical methods
bronze solid has the same appearance throughout
air, like sugar, is made of more than 1 type of atoms
sea salt contains a fixed proportion of sodium and chlorine
Air can be classified as
element
mixture of elements and compounds
mixture of elements
compounds
What is the solubility of the curve at 75oC?
20
30
40
50
Name a metal element which is a liquid at room temperature?
(a)
Which of the following are non-metals?
magnesium
chlorine
sodium
tin
Which of the following is a gas at room temperature?
oxygen
iodine
carbon
sulfur
What is the chemical symbol of iron
(a)
When iron and sulfur is heated together, a new substance is formed. This substance cannot be attracted by a magnet. Is the new substance a compound or mixture?
compound
mixture
Which element(s) is/are metals?
A
B
C
D
Which of the following is/are properties of a solution?
When left to stand, solid
particles settle to the bottom
Parts of the mixture
cannot be separated by filtration
mixture is cloudy
Light can pass through the solution
Which of the following are examples of compounds?
water
Nitrogen
sugar
air
Which of the following is true for a mixture?
contains 2 or more elements chemically combined
can be separated by physical methods
•·Elements are ccombined in fixed proportion.
•has the properties of the substances that it is made up of.
