Top answers

Chemistry
GCSE

What are moles and how do you use them?

A mole is an amount of an element or compound which contains as many atoms or molecules as is present in 12g of carbon 12 (6.02x1023 Avogadro’s number).

We can f...

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6052 Views

What is activation energy?

This is the minimum amount of energy reacting particles must have to undergo a chemical reaction.

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Answered by Suzy A. Chemistry tutor
3028 Views

What factors affect rate of reaction?

In order for a reaction to occur, particles must 1. COLLIDE with each other 2. with sufficient KINETIC ENERGY (energy greater than or equal to the ACTIVATION ENERGY). This is known as Collision Theory....

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Answered by Amy H. Chemistry tutor
8762 Views

Is there an easy way to answer questions about oxidation and reduction?

YES! OILRIG stands for Oxidation is loss, Reduction is gain 

This means that when a chemical is OXIDISED it has LOST an electron and when a chemical is REDUCED it has GAI...

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Answered by Hannah C. Chemistry tutor
1857 Views

What is ionic bonding?

Ionic bonding by definition is the electrostatic forces of attraction between oppositely charged ions. What this means is, when metal atoms lose an electron to become a positively charged ion (Na+) and...

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Answered by Yasmin M. Chemistry tutor
3031 Views

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