Top answers

What is the number of protons in an atom also called?

The atomic number.
GM
Answered by Grace M. • Chemistry tutor
4392 Views

List 3 halogen elements?

Chlorine, bromine and iodine.
GM
Answered by Grace M. • Chemistry tutor
5228 Views

What is peristalsis?

Peristalsis describes the movement of food throughout the digestive system. Muscles in within the gut wall contract therefore pushing the bolous of food through the digestive system.
GM
Answered by Grace M. • Biology tutor
13911 Views

Given that the equation x^2 - 2x + 2 = 0 has roots A and B, find the values A + B, and A * B.

There are two obvious approaches here: 1. Solve the equation x 2 - 2x + 2 = 0 to find A and B and then calculate the required values. 2. Or we can use the quicker method of analysing what it means for the ex...
SP
5548 Views

What is diffusion?

The movement of a substance from an area of high concentration to an area of lower concentration. One of the ways a substance can move in and out of a cell across the cell membrane.
GM
Answered by Grace M. • Biology tutor
4596 Views