Top answers

All subjects
All levels

What is a dative covalent bond?

A dative covalent bond is a shared pair of electrons where the shared pair of electrons originate from the same atom.

RM
Answered by Rachel M. Chemistry tutor
4570 Views

What are the different types of bonding?

There are 3 main types of bonding: covalent, ionic and metallic. Covalent bonding occurs when there are a shared pair of electrons between two atoms. Ionic bonding is the electrostatic attraction between ...

RM
Answered by Rachel M. Chemistry tutor
7029 Views

How do you calculate efficiency?

The efficiency is calculated using the equation:
((Total useful output energy)/(Total input energy)) *100
We are essentially trying to calculate what percentage of the input energy is converted...

RM
Answered by Rachel M. Physics tutor
2207 Views

Calculate 27^(-3/2)

The question asks you to calculate 27-3/2.
Due to the presence of the negative sign, 27-3/2 is the same as 1/273/2.
The fractional power is a little more tricky...

RM
Answered by Rachel M. Maths tutor
4243 Views

Expand the following expression: (2x+3)(x+1)

In order to answer this question, we will follow the FOIL procedure. First, Outter, Inner, Last. Using the 'F' we will multiply the first 2 numbers of each bracket. In most cases, these 2 variables will h...

NH
Answered by Namrata H. Maths tutor
4177 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