Answer:
To answer this question we need the illustration
Explanation:
You have left the question incomplete since we do not have the illustration making this impossible to answer
Density as you should know is equal to mass/volume. Solve for the volume.
Now, you know that you are dealing with a sphere. You know the volume of a sphere is V= 4/3pi r ^3.
You know the volume so just solve for r
<span>Only dissociated substances are written as ions in equations. Dissociated substances must balance numerically, and electrically. The process in which ions leave a solution and regenerate an ionic solid is precipitation. Precipitate insoluble solid formed, dissolution and precipitation are opposite processes.</span>
Molar mass Al(CN)3 => <span> 105 g/mol
1 mole ------------- </span><span> 105 g
? mole ------------- 217 g
217 x 1 / 105 => 2.067 moles
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