<span>Avogadro's number
represents the number of units in one mole of any substance. This has the value
of 6.022 x 10^23 units / mole. This number can be used to convert the number of
atoms or molecules into number of moles. We do as follows:
</span>10 mol NH3 ( 6.022 x 10^23 molecules / 1 mol ) = 6.022x10^24 molecules NH3
"One possibility is that the battle between the virus and your immune system can take as long as two weeks.
It could be the immune system holds the virus at bay,” said Tompkins.
Or, your immune system has to work so hard that after two weeks it’s inflamed and that’s what makes you feel bad.
The third one
synthesis reactions have multiple reactants that synthesize into one product
Answer:
B
Explanation:
Heating a piece of iron until it glows.
Answer:
there are three Fluorine atom. This is because Nitrogen give 3 electron away but fluorine can only take 1. So nitrogen gives 1 neutron to 3 fluorine each which makes it a stable compound