Top answers

Chemistry
GCSE

What is an isotope?

Isotopes are atoms of an element with different numbers of neutrons. They have the same proton number, but different mass numbers. They have the same chemical properties, due to having the same number of ...

BF
4001 Views

Describe one chemical test and one physical test for pure water.

A physical test for pure water is testing the boiling or freezing point. Pure water will boil at 100 degrees Celsius and freeze at 0 degrees Celsius. One chemical test is to use cobalt chloride paper - th...

SN
Answered by Sumrah N. Chemistry tutor
39236 Views

Describe one similarity and one difference between the structures of diamond and graphite.

Answer:Similarity: either: both contain carbon atoms; or: both have strong covalent bonds between the atomsDifference: either: graphite structure has layers whereas diamond structure...

TD
8764 Views

What is meant by equilibrium

When a reaction is in equilibrium, it means the rate of the forward reaction is equal to the rate of the backwards reaction. The concentrations of the reactants and products remain constant, but this does...

CI
4291 Views

Reaction between a metal and acid gives?

Metal + Acid --> Metal salt + H2 (g)E.g. Cu + HCl --> CuCl2 + H2

CI
2178 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning