Top answers

What is the % yield if 12g of magnesium is dissolved in hydrochloric acid to produce 20g of magnesium chloride?

First we need to write the balanced equation for the reaction. In this case it is Mg + 2HCl -> MgCl 2 + H 2 . Now we need to work out the maximum theoretical yield of MgCl 2 from 12g of Mg. 12g of Mg is 0...
HW
Answered by Holly W. • Chemistry tutor
7923 Views

With reference to valencies, describe and explain the differences in reaction as you go down group 1 of the periodic table for the reaction: metal + water -> Metal hydroxide + hydrogen.

As you descend the group, the reactions become more vigorous, more exothermic and have a higher rate of reaction. Lithium will just gently fizz and produce a gas, sodium will melt into a ball shape and fizz ...
GN
Answered by George N. • Chemistry tutor
3138 Views

Explain why an atom has no overall charge

As the number of negatively charged electrons is equal to the number of positively charged protons, therefore the overall charge is zero
EB
Answered by Ethan B. • Chemistry tutor
3505 Views

Why is methylamine a stronger base than phenylamine?

Methylamine is CH 3 NH 2 , and phenylamine is C 6 H 5 NH 2 . In methylamine, the methyl group exerts a positive inductive effect on the nitrogen atom in the amine group. This means that electrons are "p...
MW
Answered by Matthew W. • Chemistry tutor
19589 Views

electron arrangement in atoms

Work out what they know how are shells arranged? how do electrons arrange themselves within the shells? how many electrons per shell? types of shells how to write the arrangement long hand and short hand dra...
LN
Answered by Lucy N. • Chemistry tutor
2867 Views