3 years ago

The ratio of atoms of potassium to ratio of atoms of oxygen is

1 answer:

5 0

The ratio of atoms of potassium to ratio of atoms of oxygen is 2:1

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Answer:

nonmetal

Explanation:

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enot [183]

Concentration of the solution (% mass) = 4%

<h3>Further explanation</h3>

<em>Rosa prepared a salt water solution by mixing 120 mg of water with 5 mg of common salt, what concentration is the solution she prepare?</em>

<em />

<em /> $\tt \%mass=\dfrac{mass~solute}{mass~solution}\times 100\%$ <em />

mass solute=mass of salt=5 mg

mass solution :

mass solute(salt)+mass solvent(water) :

$\tt 5~mg+120~mg=125~mg$

$\tt \%mass=\dfrac{5~mg}{125~mg}\times 100\%\\\\\%mass=4$

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3 years ago