Magnesium and oxygen reacting to form magnesium oxide is a synthesis reaction. This reaction occurs when many reactants proceeds to reaction forming a single product. Synthesis reactions release energy in the form of light or heat, therefore they are exothermic reaction.
Kelvin = Celsius + 273
60°C +273 = 333 K
It is expressed in inches,feet,and pounds, centimeters,meters and kilograms in the metric system.(I hope this helps)