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- 1. Multiple Choice
Which of the following is the symbol for Palladium?
P
Pt
Pd
Pa
- 2. Multiple Choice
Which of the following elements have the atomic number 17?
Nitrogen
Chlorine
Argon
Cobalt
- 3. Multiple Choice
Which part of the atom is the arrow pointing to?
Proton
Neutron
Electron
Nucleus
- 4. Multiple Choice
What elements are in the compound lithium chlorate?
Lithium and chlorine
Lithium and calcium
Lithium, chlorine and oxygen
- 5. Multiple Choice
Which of the following is a chemical reaction?
Water boiling
A tree growing
Ice melting
Glass smashing
- 6. Multiple Choice
What is the test for carbon dioxide gas?
It burns with a 'pop'
It turns lime water clear
It turns lime water milky/cloudy
It turns cobalt chloride paper pink
- 7. Multiple Choice
What are the products of combustion?
carbon dioxide
carbon dioxide and hydrogen
hydrogen and water
carbon dioxide and water
- 8. Multiple Choice
Which of the following statements are false?
A new substance is always formed during a physical change.
A chemical reaction is irreversible.
A physical change is easy to reverse.
A chemical reaction always forms a new substance.
- 9. Multiple Choice
What is the sign of the chemical reaction taking place in the image?
A solid is produced (precipitation)
Colour change
A gas is released (effervescence)
- 10. Multiple Choice
What is the name of the group highlighted in red on the periodic table?
Alkali metals
Transition metals
Noble gases
Halogens
- 11. Multiple Choice
Exothermic reactions take in heat energy. True or false?
True
False
- 12. Multiple Choice
The columns of elements on the periodic table are called what?
Periods
Rows
Groups
Families
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