Top answers

Chemistry
All levels

How many molecules of water are present in 5g sample?

In order to measure the amount of water molecules, we need to use following equation:
n = m / M where n is the amount of water molecules in molesm is the mass in grammesM is the molecular mass of wat...

Answered by Chemistry tutor
17649 Views

Explain the bonding in and the shape of a benzene molecule.

Stage 1 -Bonding 1a) Each C has three (covalent) bonds 1b) Spare electrons (in a p orbital) overlap (to form a pi cloud) 1c) delocalisation
Stage 2 -Shape 2a) Planar 2b) Hexagon/6 carbon ring/120o b...

Answered by Yousif C. Chemistry tutor
2468 Views

Potassium forms an ionic compound with sulfur. Describe what happens when two atoms of potassium reaction with one atom of sulfur (5 marks)

In this question we need to give our answer in terms of electron transfer: Electrons are transferred from potassium to sulfur. Two potassium atoms each lose one electron forming K+ ions. Sulfur...

Answered by Megan L. Chemistry tutor
2502 Views

Complete the gaps in this sentence: In simple distillation, the mixture is heated to make the liquid ______. The vapour is then cooled to make it _______.

First answer: evaporateSecond answer: solidify

Answered by Sammy B. Chemistry tutor
4552 Views

Explain why rate of reaction increases when temperature increases.

the reactant particles have more energy, so they move quicker, so there are more frequent successful collisions

Answered by Israel H. Chemistry tutor
1744 Views

We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences