Top answers

All subjects
All levels

Why does potassium react more readily in water than sodium?

Both potassium and sodium are in the same group on the periodic table, but have a different atomic structure. Sodium has three outer electron rings, while potassium has 4. Both atoms only have one electro...

YG
Answered by Yvonne G. Chemistry tutor
14151 Views

What is natural selection?

Natural selection is part of Charles Darwin's theory of evolution.
It is when a species adapts to changes in the environment, allowing...

AJ
Answered by Amy J. Biology tutor
3139 Views

The probability of getting heads on a biased coin is 0.8. You flip the coin twice. What is the probability of getting one each of heads and tails?

Step 1: Calculate probability of getting tails by subtracting 1-0.8 = 0.2.Step 2: Calculate probability of getting heads then tails by multiplying 0.80.2 = 0.16.Step 3: Calculate probability of gettin...

NR
Answered by Nadya R. Maths tutor
10103 Views

How do you multiply two brackets with two terms in them? For example (2x-3)(x+4)

We use the FOIL method to do this, where FOIL stands for First, Outside, Inside, Last. So in this example we multiply the first term of ...

OA
Answered by Oluwatose A. Maths tutor
3775 Views

Explain price elasticity of demand and how this may impact government taxation

In economics goods/services usually have either elastic or inelastic elasticities of demand. Elastic demand means that a change in price results in a proportionally larger change in quantity demanded, whi...

IW
Answered by Isobel W. Economics tutor
4150 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