Search over 10,000 free study notes

An increase in temperature will increse the rate of a chemical reaction, and a decrease in temperature will decrese the rate. This is because the hotter the reactant particles are, the more kinetic energy...

1. The student should draw the lewis structure - this should be worked through using the whiteboard 2. From the lewis structure it can be identified that NH3 has 3 bonds and one lone pair of electrons ...

Kc=[Cl2(g)][PCl3(g)]/[PCl5(g)] for this reaction. The rate constant is not affected by changes in concentration and hence an increase in the concentration of Chlorine causes an increase in the concentrati...

A negative enthalpy change represents an exothermic change where energy is released from the reaction, a positive enthalpy change represents an endothermic reaction where energy is taken in from the surro...

The smaller ion of the two would be Mg²⁺. Both ions have the same electronic arrangement so the amount of shielding occuring for both ions is the same. The key difference between the ions that ...