Top answers

Chemistry
All levels

What is nucleophilic substitution and how can I draw a mechanism to show this reaction taking place?

  1. A substitution reaction is a displacement reaction. This is when one functional group in one reactant is displaced by another functional group from a second reactant.This is different to an addition...
AB
Answered by Amber B. Chemistry tutor
7077 Views

How many moles of Magnesium must react with excess Oxygen to produce 80g of Magnesium oxide?

This question looks at the reaction:
Magnesium + Oxygen goes to Magnesium Oxide
Mg + O --> MgO
The first step is to calculate the moles of MgO produced using the mass in the question and...

TC
Answered by Thomas C. Chemistry tutor
22269 Views

State and explain the trend in atomic radius down a group of the periodic table

Down a group of the periodic table, the atomic radius increases.
As we go down a group, the outermost electron of an atom is placed in a shell that is further from the nucleus. This means it experien...

TC
Answered by Thomas C. Chemistry tutor
33283 Views

Explain what happens to magnesium and oxygen atoms when they react to form Magnesium oxide.

When this reaction occurs, strong ionic bonds form between two oppositely charged particles (ions). 

Magnesium is a group II metal, and therefore has two electrons in it's highest energy ...

MC
Answered by Mathew C. Chemistry tutor
93584 Views

What is a buffer and what do you need to make one?

A buffer is a solution which resists changes in pH when alkaline or acidic solution is added to it.

Buffers are created based on the equilibrium of a proton donor/ acceptor...

FB
Answered by Felix B. Chemistry tutor
4422 Views

We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences