Next 10 questions
Questions 1 - 10
Click on a question to see a full answer
1. Please help! How is copper extracted from its ore? How is it then purified and why does it need to be?
2. What is Fluoride
3. What is the role of sulphur, carbon and potassium chlorate in the head of a match?
4. How does carbon dioxide turn limeater cloudy I have to explain what happens to the particles too, how can I explain this
5. What are the advantages and disadvantages of lignite?
6. What is the difference between soap and soapless detergents?
7. How do you stop steel from rusting and how do you do the experiment....
8. Why does water expand when its cooled and not when its heated? This is the opposite of everything else.
9. In chemistry I need to describe the process of fermentation, including word and balanced symbol equations! What conditions are needed for fermentation and what happens if air is present???????? Any help?!
10. I need to find out how margerine is made.