ethanol test post
Ethanol is a liquid
4.7 - 4.9 Crude oil
Crude oil is a major source of raw material for the petrochemical industry.
3.17 - 3.22 Reversible reactions and equilibria
Many chemical reactions can be reversed. When this happens we can describe a forward reaction and a back reaction. Sometimes, when in a closed system, the forward and back reaction take place at equal rates. When this happens an Equilibrium is established Students should: 3.17 know that some reactions are reversib...
Diffusion
Students should: 1.3 understand how the results of experiments involving the dilution of coloured solutionsand diffusion of gases can be explained This classic demonstration is used to demonstrate diffusion rates QuestionsAnswers in this reaction the two reactants are ammonia and hydrogen chloride write down the formula of each of these compo...
3.1 - 3.8 Energetics
3.1 Energetics Students should: 3.1 know that chemical reactions in which heat energy is given out are described asexothermic, and those in which heat energy is taken in are described as endothermic Every chemical reaction has an accompanying change in energy. Some reactions release energy to the surroundings and are known as Exothermic...
