Answer: There are 0.000043 moles of melatonin.
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 
of particles.
To calculate the moles, we use the equation:
given mass = 10 mg = 0.01 g
molar mass of 
= 232.28 g
Thus there are 0.000043 moles of melatonin
can be oxidized to form carbon dioxide
Explanation:
Oxygen is important in the oxidation of glucose because it can be oxidized to form carbon dioxide. Oxidation of glucose involves the reaction of oxygen with glucose in a process called respiration. This gives a product of water, carbon dioxide and energy which is stored as ATP.
- Oxidation involves the addition of oxygen.
- Any specie that undergoes oxidation, is a reducing agent and it is said to be oxidized.
- Oxygen is oxidized to form carbon dioxide and water.
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For Row 1 according to the respective Column is
- Zn^{2+} , 32 ,65 ,32 ,30 ,34 ,2+
For Row 2 according to the respective Column is
- Mn, 25, 55, 25, 25,30, 3-
For Row 3 according to the respective Column is
For Row 4 according to the respective Column is
- O^{2-} , 8 ,16 ,8 ,6 ,8 , 2-
For Row 5 according to the respective Column is
- Na, 11, 23, 11, 10, 12, 1-
From the question we are told
Ions, isotope, average atomic mass fill in the blank
Generally
Where
- Z signifies the Proton Number of the atom
- A signifies Mass Number of the atom
Therefore
For Row 1 according to the respective Column is
- Zn^{2+} , 32 ,65 ,32 ,30 ,34 ,2+
For Row 2 according to the respective Column is
- Mn, 25, 55, 25, 25,30, 3-
For Row 3 according to the respective Column is
For Row 4 according to the respective Column is
- O^{2-} , 8 ,16 ,8 ,6 ,8 , 2-
For Row 5 according to the respective Column is
- Na, 11, 23, 11, 10, 12, 1-
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You are exposed to nuclear radiation every day is true!
A physical property is an aspect of matter that can be observed or measured without changing it. A chemical property may only be observed by changing the chemical identity of a substance.
