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A redox reaction is a reaction where both reduction and oxidation are happening simultaneously.

Reduction is the gain of electrons, where as oxidation is the grian of elctrons. I like to remember t...

64.9/12 = 5.40833

21.6/16 = 1.35

5.40833/1.35 = 4 so 4 Carbons

13.5/1.35 = 10 so 10 Hydrogens

1.35/1.35 = 1 so 1 Oxygen

4x12+10+16 = 74 so emperical formula = Molecular ...

Barium reacts quicker with water than strontium as it has a lower first ionisation energy than strontium as barium has a larger atomic radius and so their is more shielding for the outer electrons. althou...

As you go across a period, the next atom will have 1 more proton in its nucleus than the one before. Therefore, the nucleus of each atom will have an increasingly positive charge, meaning a stronger nucle...

1. atomic radius: the larger the atomic radius, the smaller the attraction of the outer shell electrons to the nucleus so the ionisation energy is lower reduced as atomic radius increases. 2. nuclear c...