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WorksheetsS1 - My Chemical World (Part 2)
Total questions: 25
Worksheet time: 50mins
The nucleus of an atom contains...
Protons only
Electrons only
Protons and neutrons
Electrons and neutrons
What is the chemical formula for a compound containing 1 carbon atom and 4 hydrogen atoms?
CH4
C1H4
Ch4
CH4
Which of the following elements is an alkali metal?
Calcium
Boron
Nitrogen
Potassium
Which substance has the lowest melting point?
A
B
C
Which substance has the highest boiling point?
A
B
C
What state is substance A at room temperature (20oC) ?
Solid
Liquid
Gas
What state is substance B at room temperature (20oC) ?
Solid
Liquid
Gas
What state is substance C at room temperature (20oC) ?
Solid
Liquid
Gas
A compound name ends in '-ate', how many elements could be in the compound?
1
2
3
A student added acid to another solution. The student felt the beaker get colder. What sign of a chemical reaction has occurred?
Fizzing
Change in temperature
Colour change
Liquid turns cloudy
How does the melting point change as you go down group 1?
It increases
It decreases
There is no change
Which of the following is a liquid at room temperature?
Bromine
Silicon
Argon
Cobalt
Why did Mendeleev originally leave gaps in the periodic table?
He thought it would be funny
He couldn't remember all the element names
He didn't realise he had
He thought new elements would be discovered
What do all elements in the same group have in common?
Similar chemical properties
Similar names
Similar colours
Similar number of protons
Name the compound that contains lithium, phosphorus and oxygen
Lithium oxide
Lithium phosphide
Lithium phosphorus
Lithium phosphate
Name the compound that contains lithium, phosphorus and oxygen
Lithium oxide
Lithium phosphide
Lithium phosphorus
Lithium phosphate
What is the name of group 7 of the periodic table?
Alkali metals
Transition metals
Halogens
Noble gases
All elements in the same group have the same number of...
Protons
Neutrons
Inner electrons
Outer electrons
True or false? In a chemical reaction a new substance is always formed
True
False
What is electrolysis?
Separation of a solid from a liquid
Splitting a compound using electricity
Separating liquids
Another name for burning
How many elements are in calcium oxide?
1
2
3
4
Which of the following statements is FALSE?
Protons have a positive charge
The atomic number of oxygen is 8
Mercury is a solid at room temperature
Elements in the same group have similar chemical properties
Which of the following statements is TRUE?
Electrons are found in the nucleus
Argon is a noble gas
Mercury and bromine are liquids at room temperature
The chemical symbol for chlorine is 'C'
When calcium burns in oxygen, calcium oxide is formed.
The word equation for this reaction is...
Calcium + burning → Calcium oxide
Calcium → Calcium Oxide
Calcium Oxide → Calcium + Oxygen
Calcium + Oxygen → Calcium Oxide
What is the chemical symbol for Lead?
Pb
Le
La
Ag
