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Answer:
For number 5 it is the 2nd one some stants has a mass of 1.25 g And the 2nd 1 number 6It is the 1st 1A subject has a melting point of 40
Answer is: the mass of the oxygen is 2.37 grams.
Balanced chemical reaction: 2Mg + O₂ → 2MgO.
m(Mg) = 3.6 g; mass of magnesium.
n(Mg) = m(Mg) ÷ M(Mg).
n(Mg) = 3.6 g ÷ 24.3 g/mol
n(Mg) = 0.149 mol.; amount of the magnesium.
n(O₂) = ?
From chemical reaction: n(Mg) : n(O₂) = 2 : 1.
n(O₂) = n(Mg) ÷ 2.
n(O₂) = 0.149mol ÷ 2.
n(O₂) = 0.075 mol; amount of the oxygen.
m(O₂) = m(O₂) · M(O₂).
m(O₂) = 0.075 mol · 32 g/mol.
m(O₂) = 2.37 g; mass of the oxygen.
Distillation. Any filtration or distillation is a process that could be used to separate dissolved particles from the liquid in a solution.