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WorksheetsChemistry Revision
Total questions: 20
Worksheet time: 17mins
How is the periodic table of elements arranged?
(a)
The atomic number gives us
protons
electrons
mass
neutrons
nucleus
proton
lives in the nucleus & positively charge
electron
lives in the cloud & negatively charge
neutron
lives in the nucleus & no charge
valence electron
lives in the last ring & negatively charge
nucleus
where protons & neutrons are found and largest mass
Label the correct subatomic particles
Identify which are the products and reactants
The Law of Conservation of Mass states that
compounds and elements are the same
elements can be destroyed
matter cannot be created or destroyed, but can be transformed
mass is the same for all the objects if they need to exist
This change is a
chemical reaction
physical change
musical change
Ice Ice baby
How is a chemical change different from a physical change?
there is no difference
a physical change creates a new substance
a chemical change creates a new substance
Is glass breaking a chemical or physical change?
A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?
Physical change
Chemical change
No change
What is the name of the element with an atomic number of 3?
Lithium
Magnesium
Sodium
Potassium
The atomic mass of an element tells you
The number of protons and neutrons
The number of protons and electrons
The number of neutrons and electrons
The number of neutrons only
The electronic configuration of a magnesium ATOM is
2, 8
2, 8, 3
2, 6
2, 8, 2
According to the chemical symbol... Which statement is correct?
This is potassium. It's from group 1. It has 19 protons, 19 electrons and 20 neutrons.
This is potassium. It's from group 1. It has 19 protons, 20 electrons and 20 neutrons.
This is potassium. It's from group 7. It has 19 protons, 20 electrons and 19 neutrons.
This is potassium. It's from group 7. It has 19 protons, 19 electrons and 20 neutrons.
1. When 2 or more non-metallic atoms bond together, such as water (H20), it is called a _______________________
Element
Compound
Mixture
Molecule
1. When the atoms from two or more different elements are bonded together, such as salt (NaCl), it is called a _______________________.
Atom
Element
Compound
Molecule
What are the reactants in the following equation:
Fe (s) + O2(g) --> FeO (s)
Fe (s) + O2(g)
Fe (s)
O2(g)
FeO (s)
What are the product/s in the following equation:
Fe (s) + O2(g) --> FeO (s)
Fe (s) + O2(g)
Fe (s)
O2(g)
FeO (s)
What does the (g) stand for in the following equation?
Fe (s) + O2(g) FeO (s)
(a)
What does the Fe stand for in the following equation?
1. Fe (s) + O2(g) --> FeO (s)
(a)
