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Complete the sentence by putting a cross (✗) in the box next to your answer - Edexcel - GCSE Chemistry - Question 5 - 2012 - Paper 1
Question 5
Complete the sentence by putting a cross (✗) in the box next to your answer. When dilute hydrochloric acid reacts with copper oxide one of the products is A copper ... show full transcript
Worked Solution & Example Answer:Complete the sentence by putting a cross (✗) in the box next to your answer - Edexcel - GCSE Chemistry - Question 5 - 2012 - Paper 1
Step 1
Step 2
Explain what is meant by electrolysis.
Answer
Electrolysis is a chemical process that uses electrical energy to induce a chemical reaction. It involves the breakdown of a compound in solution into its individual ions, which migrate to the electrodes (anode and cathode) where they undergo reduction or oxidation. This process is commonly used in the production of chlorine from brine.
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Step 4
Explain how the presence of sulfur in fossil fuels can lead to damage to the environment and how the amount of damage can be reduced.
Answer
The presence of sulfur in fossil fuels leads to the formation of sulfur dioxide when these fuels are burned. Sulfur dioxide can react with water vapor in the atmosphere to form sulfuric acid, contributing to acid rain. Acid rain can cause acidification of lakes, harm aquatic life, damage forests, and erode stone structures.
To reduce the damage, we can implement several strategies:
- Use of fuels that contain lower levels of sulfur.
- Installation of scrubbers in power plants to remove sulfur dioxide before it enters the atmosphere.
- Transitioning to renewable energy sources, which do not produce sulfur emissions.