1. Calderglen High School
Acids and Alkalis 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
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2. 1
Which type of oxide dissolves in water to produce acids?
answer
Non-metal oxides
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3. Calderglen High School2
What is formed when sulphur dioxide reacts with water in the atmosphere?
answer
Acid rain
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4. 3
Which type of oxide dissolves in water to produce alkaline solutions?
answer
Soluble Metal oxides
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5. Give an example of the damaging effects of acid rain4
Give an example of the damaging effects of acid rain
answer
Destroys wildlife, damages buildings/metal structures
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6. 5
Which one of the following will produce an acidic solution when dissolved in water ?
answer
NO2
Na2O
Non metal oxides dissolve in water to form ACIDS
FeO
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7. Calderglen High School6
How would you use universal indicator or pH paper to find the pH of a substance ?
answer
Add indicator/pH paper to the substance and the check colour against a pH chart
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8. 7
Which of the following will produce an alkaline solution when dissolved in water ?
answer
NO2
Na2O
Soluble metal oxides dissolve to form alkalis
FeO
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9. What is the range of pH values for an acid ?8
What is the range of pH values for an acid ?
answer
Less than 7
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10. Calderglen High School9
Universal indicator was added to a solution and it turned RED. What type of solution is it ?
answer
acidic
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11. What is the pH range for an ALKALI ?10
What is the pH range for an ALKALI ?
answer
Greater than 7
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12. Calderglen High School11
Universal indicator was added to a solution and it turned blue. What type of solution is it?
answer
Alkaline
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13. What is the pH number for a neutral substance?12
What is the pH number for a neutral substance?
answer 7
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14. How can acids in food and drink affect your health?13
How can acids in food and drink affect your health?
answer
Tooth erosion
Indigestion
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15. Calderglen High School14
Universal indicator was added to a solution and it turned green. What type of solution is it?
answer
neutral
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16. List some uses of acids in food and drinks15
List some uses of acids in food and drinks
answer
Vinegar
Preservatives
Flavourings
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17. Calderglen High School16
During electrolysis of an acid hydrogen gas is given off. What is the test for HYDROGEN gas?
answer
Burns with a pop!
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18. Give an example of a common acid17
Give an example of a common acid
answer
vinegar, fizzy drinks
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19. Give an example of a common alkali.18
Give an example of a common alkali.
answer
Toothpaste, bicarbonate of soda
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20. Calderglen High School19
List some ways that excess carbon dioxide production may harm the environment?
answer
Global Warming
Acidification of Oceans
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21. Give a main source of carbon dioxide production.20
Give a main source of carbon dioxide production.
answer
Burning organic substances
e.g fossil fuels
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22. What is a Carbon Footprint?21
What is a Carbon Footprint?
answer
The total greenhouse gas emission caused by a person or process
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