Answer:
answer is C
Explanation:
encourage the release of carbon dioxide from the stems
The answer is C, because if the copper has a +2 charge, the fluoride must have a -2 charge in order to cancel out.
Hiii,so the problem is ♀️
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