Search our library of Chemistry questions

Top answers

Chemistry

All levels

What are the products of the hydrolysis of phenacetin by a base? Phenacetin was once used in analgesic tablets, but it is no longer used because it has severe side effects.

The functional group on the right side of the benzene ring is an .css-14jxgv6{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;}.css-14jxgv6 div:first-child{margin:10px 10px 5px 0;}.css-14jxgv6 div:last-child{margin-left:auto;}

Answered by Mona E. • Chemistry tutor

1920 Views

How does column chromatography work? (A-Level Chemistry)

We use column chromatography to purify an organic product. We begin with a glass column filled with a slurry of absorbent material. This could be aluminium oxide coated w...

Answered by Noa M. • Chemistry tutor

1822 Views

Order the following substances from highest to lowest boiling point stating hat type of bonds they have. Iron, Water, Sodium Chloride(5)

2 Mark for order 3 for correct bondIt is important to think about the bonds even if you are unsure about the order as you can still get 3 marks.Think about the bonds:Water, covalent bond (h_{2 <...}

Answered by Lavana C. • Chemistry tutor

2363 Views

How does the electronegativity of the halogen atom change as group 7 is descended?

Electronegativity is the measure of how strongly an atom attracts a bonding pair of electrons to itself. As group 7 is descended, the electronegativity decreases. This is because the size of the halogen a...

Answered by Serene T. • Chemistry tutor

12373 Views

Describe the difference in melting points for the elements Sodium and Magnesium

With these sort of questions, it's important to firstly think about what type of bonds make up the structure of the element. For this example, they both have metallic bonds which hold the structures toget...

Answered by Myles S. • Chemistry tutor

13003 Views