Search our library of Chemistry questions

Top answers

Chemistry

All levels

Liquid ammonia (NH3) and water (H2O) both show hydrogen bonding, describe what a hydrogen bond is and what it is conferred by

A hydrogen bond forms between the positive dipole of one molecule and the negative dipole of another molecule. They can be represented on a diagram with a dashed line perpendicular (at 90˚) to the bond an...

Answered by Ben H. • Chemistry tutor

16447 Views

Nitric acid reacts with magnesium and fizzing occurs. Write a word equation and a balanced chemical equation for this reaction.

Acids react with metals to give a salt and hydrogen gas.Nitric acid + magnesium --> magnesium nitrate + hydrogen2HNO₃+ Mg --> Mg(NO₃)₂+H₂

Answered by Emma C. • Chemistry tutor

14459 Views

What is the difference between an atom and an ion? Explain the difference between an Na (sodium) atom and Na+ ion.

An atom is a neutral particle, an ion is a charged particle.Taking a sodium (²³Na) and sodium ion (Na⁺) as an example:Firstly, we need to break down both into their subatomic particl...

Answered by Tutor108813 D. • Chemistry tutor

23551 Views

Explain how CH3CH2CHO can react with a Grignard reagent to produce CH3CH2CH(OH)CH2CH3. State the reagents and give the mechanism.

Use the Grignard reagent CH₃CH₂MgBr. CH₃CH₂CHO + CH₃CH₂MgBr ---> CH₃CH₂CH(OH)CH₂CH₃step on...

Answered by Jenny C. • Chemistry tutor

7923 Views

explain what an enantiomer is

an enantiomer is two molecules that are mirror images of each other, the best way to visualise it is to draw the molecule in a tetrahedral shape around the central carbon atom, then draw a line down the p...

Answered by Max T. • Chemistry tutor

2142 Views