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While this problem could be done simply by inputting the appropriate numbers into the correct formula, it is good practice to draw a diagram of the problem in order to minimise any silly mistakes that may...

A dative covalent bond is a shared pair of electrons where the shared pair of electrons originate from the same atom.

There are 3 main types of bonding: covalent, ionic and metallic. Covalent bonding occurs when there are a shared pair of electrons between two atoms. Ionic bonding is the electrostatic attraction between ...

The efficiency is calculated using the equation:
((Total useful output energy)/(Total input energy)) *100
We are essentially trying to calculate what percentage of the input energy is converted...

The question asks you to calculate 27^-3/2.
Due to the presence of the negative sign, 27^-3/2 is the same as 1/27^3/2.
The fractional power is a little more tricky...