Group 41

Group 41 Group Name : Group 41
Group Members :
Nicholas Kwok, Jeffrey Fong, Lieu Shi Yang, Hua Xin, Qi Yuan, Hao Jun
1.

a) 6C + 6H2O -> C6H12O6
c) No. It is due to the different solubility in water. Hence, the more soluble it is, the sweeter it is. Fructose is sweeter than glucose.

2.

Everything we eat is made up of chemicals: food we eat, water we drink. All matter is made of chemicals. We are “biochemical machines” and everything inside us is driven by chemical reactions inside of our body. Therefore, it is impossible to go on such a diet.

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Group 41

Group 41 Group Name : Group 41
Group Members :
HUA XIN, NICHOLAS KWOK JUN HUI, SIOW QI YUAN, FONG CHEE YONG JEFFREY, KOH HAO JUN, LIEU SHI YANG
1.

Desalination requires a lot of energy to operate, for example, pushing water actively from the ocean through a filter which will result in a very high cost. Furthermore, it produces a briny waste which pollutes the ocean. The high concentration of salt and toxic will destroy the local ecosystem.

2.

A polar molecule has a positive charge at one end and a negative charge athe other. Water molecules are polar in nature, hence polar vitamins are able to dissolve in water. On the other hand, fats at non-polar. Therefore, non-polar vitamins are able to dissolve in fats, making them fat-soluble.

3.

Acid rain is produced when sulfates and nitrates react with water molecules to form dilute sulfuric acid and dilute nitric acid respectively. Sulfates and nitrates are produced from coal power plants and vehicle exhaust emission.

A) It results in lesser electricity used as drying machine is not used to dry the laundry.
B) It results in lesser vehicles on the road, therefore lesser vehicle exhaust emission.
C) It saves electricity.
D) it makes the water heater more efficient, thus saving electricity.
E) it reduces the shipping of international produce and food, thus emitting lesser nitrates as ships and planes are not used.

4.

The coal power plants releases sulfur dioxide and this creates sulfate particles which are responsible for the poor visibility.

The pH will be about 4 to 5.

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