Search over 10,000 free study notes

1. Change % of elements in to moles: 30.7 mol of S, 23.3 mol of Mg and 46 mol of O₂.
   
2. Find the mass of each of the elements: 30.7 mol / 32.06 g/mol = 0.96 g of S;  23.3 mol / 2...

Zn(s) + H₂SO₄ (aq) –> ZnSO₄(aq) + H₂(g)

Zinc reacts with sulfuric acid to form zinc sulphate and hydrogen gas

Balance the carbon atoms first by adding a 4 in front of the CO2,

Then balance the hydrogen atoms by adding a 4 in front of the H2O, 

Count up the number of oxgens on the right hand side: (4...

The reason Copper and Chromium have a slighly odd electron configuration is because of stability. By only having 1 electron in the 4s oribtal, Chromium is able to have 1 electron in each of it's 3d orbita...

Atoms are made up of three different types of particle. Protons and neutrons exist in the nucleus, while electrons orbit.

The relative charges of these particles mean that protons are positive whil...