<span>N2, penta means 5, so 5 oxygens
so with that being said n205</span>
C.Dissolve because its another word for soluble
<span>number of moles are the amount of substance of an element .
number of moles can be calculated as follows;
number of moles = mass present / molar mass of element
molar mass of Ar - 40 g/mol
number of moles of Ar = 22 g / 40 g/mol = 0.55 mol .
there are 0.55 mol of Ar</span>
All are equal.
One mole represents a fixed number. Since they all have one mole of molecules, they all have the same number of molecules.
Answer:
Half-life = 1.21x10⁻⁴ years⁻¹
Explanation:
The kinetics decay of ¹⁴C follows the first order reaction. That means half-life of ¹⁴C is defined as:
Half-life = ln 2 / K
<em>Where K is decay constant.</em>
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As decay constant of ¹⁴C is 5730 years, half-life is:
Half-life = ln 2 / 5730 years
<em>Half-life = 1.21x10⁻⁴ years⁻¹</em>
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