The system of reemployment More and more companies adopt the syste4m of reemployment. It is because Japanese birth rate is decreasing. It is said that there will be less young employees in office in the future. Therefore, elderly worker become to be regarded a...
*Aim According to Hess’s law, the heat of reaction of the one reaction should be equal to the sum of the heats of reaction for the other two. Measure the heat released by 3 reactions by using a Styrofoam-cup to than calculate for the heat of reaction, ΔH, fo...
Aim: /Experiment 1. Find out the ΔH of neutralization /Experiment 2. Find out the heat of combustion of the ethanol. /Experiment 3. Find out the heat of reaction between CuSO4 and Mg. Hypothesis: /Experiment 1. I think the result become negati...
Global Warming: Is It Really Happening? Global warming is one of the biggest problems around the world. As a result of it, some people will lose their land because of a rise in the sea level, abnormal weather such as torrential rain and drought will ...
Haiti Earthquake: Why is the Catastrophe Happened? On January 12 evening, 2010, a strong earthquake attacked Haiti, a small island country on the Caribbean Ocean. It is reported that over 200,000 people died by this earthquake and the society of Haiti has tota...
Psychology of a Happy Married Couple “Marriage is second life”, I think. As soon as they get married, they start to step with their partner. In recent years, divorced couples are increasing. So, there must be important psychology in a Happy Married Couple. F...