Top answers

How does the reactivity of Group 1 Metals with water change down the group?

This is due to the shielding effect. When a group 1 metal reacts with water the reaction proceeds through the formation of an ionic species MOH where M is any group 1 metal. Since the species formed is ionic...
JG
Answered by Joseph G. • Chemistry tutor
4577 Views

Describe how crude oil is separated into fractions in industry

Crude oil is made of many hydrocarbons that can have differing lengths . A hydrocarbons length determines it's boiling point due as a higher number of atoms in the chain means it has more Van Der Waals force...
BH
Answered by Ben H. • Chemistry tutor
3231 Views

What chemical test can be used to differentiate between alkenes and alkanes. Describe and explain the results.

Alkenes decolourise bromine water (orange/brown to colourless) while alkanes cause no change in colour. An electrophilic addition reaction occurs with the alkene. In a reaction between ethene and bromine wat...
SE
Answered by Sito E. • Chemistry tutor
14350 Views

why does graphene conduct electricity?

usually covalent structures cannot conduct electricity but graphene is one of the exceptions and this is due to its structure and bonding. It is a giant covalent 2D molecule, hexagonal in shape with 3 covale...
CN
26389 Views

State the reagents and conditions for the formation of an aldehyde, starting from a primary-alcohol.

Answer: Heat with acidified potassium dichromate (IV), distilling off the aldehyde as it forms. Explanation: To form an aldehyde from an alcohol the alcohol group must be oxidised. To do this we use potassiu...
TO
Answered by Tom O. • Chemistry tutor
6033 Views