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5 Cards in this Set
- Front
- Back
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In the haber process, unreacted nitrogen and hydrogen are recycled. Explain why. |
Reduced costs as saves starting materials. Improves percentage yield. Make sure nothing is wasted. |
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Ammonia is manufactured at 450 degrees celcious, and 150 atmospheres using an iron cataylist. Explain why these conditions are used. |
Iron cataylist speeds up reaction. Reaction is too slow at 350 degrees celcious and any higher than 450 degres celcious would decrease percentage yield. Very high pressures cost a lot to generate and low pressures decrease the percentage yield. |
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Complete the word equation for neutralisation: acid + base ------> ....................... + water |
Salt |
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If you want to make pottasium nitrate, what acid and what base should you use? |
Nitric acid and pottasium hydroxide. |
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Why is it difficult to study the structure of the Earth? |
The crust is too thick to drill through. Increased temperature as you get close to the mantel or the core. Scientists need to use seismic waves made by earthquakes or man made explosions. |
