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Chemistry
GCSE

What are the products of the reaction between an acid and a base?

A salt and water (H2O). H+ from the acid and OH- from the base combine to make water. The salt formed depends on the acid and base counterions, and is usually dissolved in...

Answered by George H. Chemistry tutor
6396 Views

What is the difference between Ionic and Covalent bonding

Covalent bonds are formed when two atoms share one or more pairs of electrons. These atoms are non-metals, such as Carbon, Oxygen and Hydrogen.

Ionic bonds are formed when an atom gives o...

Answered by Theo N. Chemistry tutor
2473 Views

What four factors influence the rate of reaction?

Temperature, pressure, surface area and concentration all affect the rate of a chemical reaction. 

Temperature makes the particles more energetic and increases the frequency of collisions...

Answered by Michael W. Chemistry tutor
7184 Views

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...

Answered by Alexander A. Chemistry tutor
5473 Views

What is activation energy?

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

Answered by Suzy A. Chemistry tutor
2818 Views

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