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How can I work out which gas is released when ethanoic acid is reacted with sodium?

Ethanoic acid is CH 3 COOH. Acids can ionise, producing H + ions and in this case, CH 3 COO (ethanoate) ions. The sodium exists as Na + ions in solution, which then create neutral ion complexes with the etha...
SR
Answered by Sara R. • Chemistry tutor
3235 Views

What are the structural differences between eukaryotic and prokaryotic cells?

Size: prokaryotic cells tend to be smaller. Outer layers: prokaryotic cells have a cell membrane surrounded by cell wall, while eukaryotic cells have a cell membrane but only plants and fungi have a cell wal...
AG
Answered by Alex G. • Biology tutor
4414 Views

What is the difference between diffusion and active transport?

Diffusion is the movement of particles from a high to low concentration and does not require energy. An example of diffusion is oxygen moving from the airways (high concentration inhaled) to the lungs (low o...
CB
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How should you answer comprehension questions in a language paper?

Comprehension questions require you to demonstrate that you are able to translate the meaning of the Latin you are given, but do not require you to translate word-for-word. This means they are a great opport...
JB
Answered by Jessica B. • Latin tutor
2911 Views

How do you approach the close reading of a passage?

Close reading is a very important skill required for questions that give you a passage to look at in the exam. An example A-level question might be, 'Discuss the passage from Act 1 Scene 4 of Hamlet, explori...
JB
Answered by Jessica B. • English tutor
3016 Views