Chemistry Homework - Help!?

Question

Okay, if anyone could point me out to a website with these chemical equations or tell me what they are, I would really appreciate it...I have them answered, but I seriously doubt they're right and this is worth some major points.

1 - A synthesis reaction that is happening in your body.
2 - A decompostion reaction that is happening in your body.
3 - A replacement reaction happening in your body.
4 - A combustion react happening in your body.
5 - List some catalysts being used in reactions in the body.
6 - Given their location on the Activity Series, why have platinum, gold, and silver become so valuable?
7 - Why is it necessary for humans that calcium carbonate is not water soluble?

Answer 1

1. Many reactions: a. synthesis of proteins from amino
acids; polysaccharides like glycoggen from glucose and
nucleic acids from nucleotides.

2. breakdown of hydrogen peroxide into water and
molecular oxygen; breakdown of fats into fatty acids and
glycerol.

3.

4. Respiration in which glucose is oxidised to carbon
dioxide and water

5. These catalysts are called enzymes; salivary amylase in
the mouth, carbonic anhydrase in the lungs, pyruvate
dehydrogenase in the mitochondria etc.

6. They are unreactive and hence are not affected by air or
water and so could be used as jewellery; also because
they are rare, they are in demand and hence fetch high
prices.

7. Calcium carbonate is the main inorganic substance of
bones and teeth which are our skeletal structures
required for support, protection, mastication in case of
the teeth and locomotion

Answer 2

So slicing with the aid of each and every of the bullshit, you desire us that may assist you pretend lesson plans which you have been never assigned and chemistry homework which you never did so your instructor might supply you a grade which you never earned? what's your backup plan while your chemistry instructor tries to be advantageous this with the instructor on the countless college? Or ought to we watch for that question for next week? i do no longer think of i may be doing you any favors if I "helped" you, yet i be attentive to this is going to take you a lengthy time to realize that. Suck it up and play the enjoying cards you're dealt.

Answer 3

7. Calcium carbonate is the major component of our bones and teeth. Our bodies are about 70% water. If our bones and teeth could dissolve in water then we would quickly turn into something like toothless jellyfish.

Answer 4

all except 6 belong to biology. These metals are precious because their availability is rare, they are malleable and ductile i.e can be moulded into various shapes by simple processes but they are not brittle and they can be steched into thin wires