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Water molecules have a molecular formula of H2O. The O-H bond in water is a polar bond. This is because there is a big difference in electronegativity between the oxygen and the water. It is known that ox...

Key Equation: Q = mcΔT Where: Q = heat transferred (J), m = mass of substance which is heated (g), c = heat capacity of water (J g^-...

fist look at the first molecule on the left of the equation, the first atom is P there's 1 mole and looking at the right there is also only one. the look at the next atom Cl which has five mole, on the ri...

For the atom which you want to calculate the charge determine the number of valence electrons a free atom usually has. this is the number of atom on the outer shell so for nitrogen, it has 5 valence atoms...

When metals react with non-metals, electrons are transferred from the metal atoms to the non-metal atoms, forming ions.  The resulting compound is called an ionic compound.

A few examples of ionic ...