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Chemistry
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What are strong and weak acids? How do they differ from diluted and concentrated acids?

Acid strength relates to the degree of ionisation in aqueous solution. A strong acid is completely ionised in aqueous solution. A weak acid is only partially ionised in aqueous solution.On the other hand,...

CZ
Answered by Coco Z. Chemistry tutor
7296 Views

Which is more reactive, an alkane or an alkene and why?

Alkenes are more reactive due to the presence of a carbon carbon double bond (always important to state what the double bond is between or may not get the marks!). This is because the carbon carbon double...

LC
Answered by Lucy C. Chemistry tutor
38343 Views

Why does ice float on water?

Water has strong intermolecular hydrogen bonds that hold the water molecules close together, making it very dense. As water freezes, the hydrogen bonds move further apart as it forms a hexagonal lattice. ...

NR
Answered by Nia R. Chemistry tutor
2872 Views

What is an optical isomer?

Optical isomers are a form of stereoisomers which are chemical species with the same structural formula, but have a different arrangement of atoms in 3-dimensional space. Optical isomers are characterised...

TD
Answered by Thomas D. Chemistry tutor
2395 Views

Describe a test that could be used to distinguish between potassium sulfate (K2SO4) and potassium nitrate (KNO3)

Add a solution containing Barium ions (eg BaCl2, Ba(OH)2, etc)K2SO4 will form white precipitateKNO3 will have no visible change

IW
Answered by Isobel W. Chemistry tutor
15012 Views

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