(a) C6(H2O)6
(c) No, isomers have different chemical properties.

Chemicals involve water and air and our bodies contains chemicals and in many ways, exposure to chemicals is inevitable. Large scale organic farms need to apply certain chemical solutions to their crops.

a) CnH2nOn equals Cn(H2O)n

b) please google unable to draw

c) Due to the subtle difference in shape, chemical isomers behave differently in the body. Although glucose & fructose has the same chemical composition. Fructose is two times sweeter than glucose.

There is no such thing that contains no chemicals. Everything around us is made up of chemicals from the water we drink to the air we breathe. For examples, apple seeds have roughly the same toxic-ant levels as sodium thiopental and in lethal injections with both beocoming toxic at around 100mg/kg.

a. C6(H2O)6 or generally, Cn(H2O)n

c. Yes, Glucose is an isomer of fructose but they do not have the same sweetness level.

Almost everything contains chemical and the processing also requires chemical. Chemical is any molecule containing substance. This means that the water we are required to drink everyday is also a chemical. Hence, it is not possible to go on a “chemical-free, all organic diet.”

a. CnH2nOn≡Cn(H2O)n
Therefore, C6H12O5≡C6(H2O)6

b. Please refer to the hardcopy. (or http://tinypic.com/r/2qxrwgg/9)

c. No. Sweetness is determined by the receptors in our tongue. the strength depends on how many or how long those receptors are opened. Different isomers have different stereoisomerism, thus different activity to the receptor.

It is impossible to go chemical-free as the consumption of food triggers a range of chemical activities in our body. The word ‘chemical’ often denotes a molecular compound and all food are composed of molecular compounds. Therefore, you can only have an “all organic” diet only.

a. C6(H20)6
b.
c. Different sweeties. Different chemical structures of each isomer of fructose bond to different sensory receptors on the tongue, leading to slightly different taste of each isomer.

Everything is made of chemical compounds. The concept of chemical-free is therefore impossible. chemical compound is defined as the molecular structure, all are made up of molecules

(A) C6(H20)6
(B) glucose- reference: http://www.chemicalformula.org/glucose
(C) No. Different isomers have different structure and chemical properties. Hence the sweetness may vary between different isomers of fructose

All food are chemicals and elements are chemicals. Even the purest filtered water or crystalline, unpolluted water from the highest mountain top. Just about everything we touch, eat, drink or breathe is a chemical or combinations of chemicals. Lots of things are all natural and elements are in their natural form.

a) C6H12O6 = C6(H2O)6

b) D-Fructose and L-Fructose

c)No. The difference in structures will have different binding affinity to sweetness (taste) receptors, which elicits different neural response.

In reality, everything we eat, whether healthy or not, are composed of chemicals.
Even if the food is grown in organic/pesticides-free condition, there are chemicals brought about by rain may still contaminate these food. (e.g. pesticides flushed down from non-organic farms to organic farms by rain)
Packaging such as plastics containers can cause chemicals to be transferred to the food.

a. 6CO2 + 6H2O + energy –> C6H12O2 + 6O2 ; CnH2nOn = Cn(H2O)n

c. Yes. This is because even though fructose is the isomer of glucose but still fructose is sweeter than glucose.

All food contain at least a trace amount of chemicals. There may be some amount of pesticides present in the soil. Therefore, “all organic, chemical-free” diet is impossible.

a) (C)n + (H2O)n

b)

c) For example, glucose is an isomer of fructose. These two carbohydrates have different sweetness level. It is possible that it is due to the difference in structural arrangement which affects the binding ability to the “taste” receptor.

The concept of chemical-free diet is impossible as the fundamental understanding of chemistry is that all molecules are make up of chemical structures. Hence, no food can be chemical-free.

a) C6(H2O)6
b) Refer to hardcopy
c) No. They have same structure but different chemical properties.

It is impossible to consume an entirely “chemical-free” diet as our body needs certain kinds of chemicals. And it is impossible to find food that does not contain or involve chemicals at all. Furthermore, organic food might not contain sufficient nutrients that our body require.