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Pie
3 years ago
6

Which mix will be homogeneous?

Chemistry
2 answers:
liubo4ka [24]3 years ago
5 0
B) mixing food coloring and water

It will create a homogeneous mixture because it will be inform throughout.
DIA [1.3K]3 years ago
4 0

Answer:

B

Explanation:

food coloring and water are inseparable after mixed.

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30 POINTS! ----- How many moles of oxygen gas are needed to completely react with 145 grams of aluminum? Report your answer with
gladu [14]
First a balanced reaction equation must be established:
4Al _{(s)}    +   3 O_{2}  _{(g)}     →    2 Al_{2} O_{3}

Now if mass of aluminum = 145 g
the moles of aluminum = (MASS) ÷ (MOLAR MASS) = 145 g ÷ 30 g/mol
                                                                                    =  4.83 mols

Now the mole ratio of Al : O₂ based on the equation is  4 : 3  
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∴ if moles of Al = 4.83 moles
  then moles of O₂ = (4.83 mol ÷ 4) × 3
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Thus it can be concluded that 3.63 moles of oxygen is needed to react completely with 145 g of aluminum. 


     
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3 years ago
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