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Chloride ions have a greater charge density than bromide ions due to their smaller size, and therefore attracts the delta positive H in the water molecule more strongly. This would be approximately a 3 ma...

An empirical formula is the simplest ratio of atoms of each element in a compound. You will be given either the mass of each element in the compound or the % mass. 1. Divide each mass (or % mass) by the a...

An atom is made up of 3 sub-atomic particles: the proton, neutron and electron. A proton has a relative mass of 1, a relative charge of +1 and is located in the nucleus. A neutron has a relative mass of 1...

The relative mass of a proton is 1. The relative mass of a neutron is 1. The relative mass of an electron is 1/1840 (accept 0).

(1) First, write out the equation if it is not given: N₂ + 3H₂ ---> 2NH₃ (2) Calculate the moles of nitrogen in the reaction using the information you have; in this cas...