Top answers

How can an explosion be explained by the different ways molecules are packed together in solids, liquids and gases?

a) Gases tend to occupy a much larger volume than solids and liquids, since intermolecular forces are much weaker. b) Explosives are very unstable molecules: in this context, unstable means “full of potentia...
RS
3097 Views

You are writing about your plans to make your town more environmentally friendly.

Aujourd'hui, de nombreux problèmes liés à l'environnement sont à considérer. En effet, on assiste à un grand nombre d'éléments alarmants qui laissent entendre qu'il est nécessaire de prendre des mesure rapid...
LS
Answered by Lola S. • French tutor
2885 Views

name 3 organelles that are present only in plant cells

cell wall, vacoule, chloroplasts
SS
Answered by Sagar S. • Biology tutor
4337 Views

What is the difference between moles and molar?

Lets start with what a concentration is. Concentration is the amount of something in a volume. For example, 1 gram of sugar in one litre of water is 1 gram per litre. This can be written as 1g/L (the divisio...
BR
Answered by Ben R. • Chemistry tutor
62469 Views

The nth term of a sequence is 7n-4. Write down the 4th term and the 10th term of the sequence. The first four terms of a different sequence are 9, 13, 17, 21. Find an expression for the nth term of this sequence.

The nth term of a sequence means that when we substitute the value of n in to the equation, we find that term. So to find the 4th term in the sequence, we substitute 4 in for n. 7(4)-4=28-4=24. The 10th term...
LT
Answered by Laura T. • Maths tutor
25243 Views