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- 1. Multiple ChoiceAnother term for burning isFire triangleMagnesium oxideCombustionBustion
- 2. Multiple Choice
In this chemical reaction, which is the product/s?
Magnesium + Oxygen --> Magnesium oxide
magnesium
magnesium and oxygen
magnesium oxide
oxygen
- 3. Multiple Choice
magnesium + oxygen --> magnesium oxide
If you started with 5g of magnesium and 2.5g of oxygen, what mass of magnesium oxide would be produced?
5g
2.5g
7.5g
10g
- 4. Multiple ChoiceWhich of the following is the product of the reaction of aluminium and oxygen?aluminium oxide.metal oxidealuminium orealuminium and oxygen
- 5. Multiple Choice
What is the scientific term given when something burns?
a fuel
flammable
combustion
heating
- 6. Multiple ChoiceHow are metal oxides formed?When metals react with oxide.When metals react with water.When metals react with air.When metals react with oxygen.
- 7. Multiple ChoiceWhich of the following reactions produces calcium oxide?calcium and oxidecalcium and watercalcium and aircalcium and oxygen
- 8. Multiple ChoiceWhich of the following defines oxidation?A chemical reaction where a substance gains oxygen.A chemical reaction where a substance loses oxygen.A chemical reaction where a substance loses a metal.A chemical reaction where a substance gains a metal.
- 9. Multiple ChoiceWhich of the following is an example of an oxidation reaction?Ca + O2 --> CaONa2O + H2O --> NaOHFe2O3 + CO --> Fe + CO2All of the choices are oxidation reactions.
- 10. Multiple ChoiceThe rusting of iron is an example ofa reduction reaction.an oxidation reaction.a reaction of iron with water.a reaction that dissolves iron.
- 11. Multiple Choice
In a word equation, the starting chemicals are called...
reactants
products
ingredients
- 12. Multiple Choice
What was the chemical name given to Rust ?
Carbon
Iron Oxide
Iron Oxygen
Magnesium Oxide
- 13. Multiple Choice
True or false: A change in state is a chemical reaction
True - something melting would be an example of a chemical reaction
False - a change in state is a physical change
- 14. Multiple Choice
Oxidation is the...
loss of oxygen and gain of electrons
gain of oxygen and loss of electrons
- 15. Multiple Choice
Reduction is the...
loss of oxygen and gain of electrons
gain of oxygen and loss of electrons
- 16. Multiple Choice
Oxidation is the...
loss of oxygen and gain of electrons
gain of oxygen and loss of electrons
- 17. Multiple Choice
Reduction is the...
loss of oxygen and gain of electrons
gain of oxygen and loss of electrons
- 18. Multiple Choice
Oxidation is the...
loss of oxygen and gain of electrons
gain of oxygen and loss of electrons
- 19. Multiple Choice
Reduction is the...
loss of oxygen and gain of electrons
gain of oxygen and loss of electrons
- 20. Multiple Choice
Oxidation is the...
loss of oxygen and gain of electrons
gain of oxygen and loss of electrons
- 21. Multiple Choice
Reduction is the...
loss of oxygen and gain of electrons
gain of oxygen and loss of electrons
- 22. Multiple Choice
What is the basis of a metallic bond?
the attraction of neutral metal atoms.
the attraction between protons and neutrons.
the attraction between positive metal ions and delocalised neutrons.
the attraction between positive metal ions and the delocalised electrons.
- 23. Multiple Choice
Physical property: is lustrous
metal
nonmetal
- 24. Multiple Choice
Physical property: is malleable
metal
nonmetal
- 25. Multiple Choice
Physical property: some of these elements are gases at room temp.
metal
nonmetal
- Answer choicesTagsAnswer choicesTags