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So firstly, we assume that the oxygen is in excess (i.e. the amount of oxygen reacting won't limit the amount of carbon that can react), so we know that exactly 3 moles of carbon will be burnt. Then, from...

This is due to the metal in the powder form having a larger surface area. There are 4 ways to increase the rate of reaction. Increasing the concentration of the reactants, increasing the temperature, addi...

Bonds in a molecule BREAK when that molecule is reacted with another molecule. They then MAKE another bond.This bond can be between molecules or can just be part of the new molecule.There are many types o...

A mole is a unit of 'amount of stuff' and is equal to 6.022x10²³. It is such a big number because we use the mole to describe how many atoms we have of something, so instead of saying "I h...

As you move along the period the proton number increases and the electrons are added to the same shell meaning no extra electron shielding occurs. Therefore the nuclear attraction to the outer most elect...