Top answers

Chemistry
GCSE

How do I balance the chemical equation: C2H4 + O2 --> CO2 +H2O

First take a look at the equation and see how many elements there are, in this case we have 3 different elements; Carbon, Hydrogen and Oxygen. To balance the equation start off by balancing the elements i...

AP
Answered by Andrei P. Chemistry tutor
51641 Views

Whats the difference between an ionic bond and a covalent bond?

In an ionic bond, the bond is due to electrostatic attraction between the two ions. In a covalent bond the bond is formed due to the sharing of electrons between the bonding atoms.

NP
6540 Views

Why does Magnesium Oxide have a higher melting point than Sodium Chloride?

Both Magnesium Oxide and Sodium Chloride exist as a giant ionic lattices where each oppositely charged ion is held in place by a strong electrostatic attractions. These ionic bonds are strong and require ...

JC
Answered by James C. Chemistry tutor
81965 Views

Why does ice float on water?


A substance will float on water if it has a lower density than water. Therefore, ice floats on water simply because it is less dense than water.

Water is unlike other substances in terms of ...

FB
4709 Views

What determines whether something is acidic or basic?

The pH of a particular substance depends on the functional groups that it has within its structure. What is a functional group? A functional group is a group of atoms and bonds within a molecule. The way ...

EA
Answered by Emily A. Chemistry tutor
15617 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