9.4 Corrosive Nature of Acids Flashcards
What’s the word equation between acids and metals?
Acid + metal -> salt + hydrogen
How to test for hydrogen in a test tube?
Place a burning splint over the test tube, the hydrogen burns with a ‘pop’ sound.
When metals react with the acid, what will happen to the metal?
The metal’s size decreases slightly. The acid dissolves the metal.
What contains calcium carbonate?
Marble, limestone.
What’s the word equation between acids and carbonates?
Acid + carbonate -> salt + carbon dioxide + water
Describe rainwater with near knowledge.
Rainwater is naturally slightly acidic and has a pH value of about 5.6.
How to define acid rain?
If the rainwater is more acidic than it should be, it is considered acid rain.
Burning fossil fuels produces what.
Burning fossil fuels produces sulphur dioxide oxides of nitrogen.
What does the gas produced in burning fossil fuels cause?
Those acidic gases make the rainwater more acidic. As a result, acid rain is formed.
What are the effects of acid rain?
It dissolves metal objects and building materials, damages plants, and causes harm to aquatic life.
