Answer:
I think the answer is A. Hydrogen! hope I helped you! ^_^
The question is incomplete, the complete question is:
Which option is a microscopic property that helps determine whether or not two substances will dissolve with each other? (1 point)
A. state of matter
B. volume
C. molecular mass
D. polarity
The microscopic property that helps determine whether or not two substances will dissolve with each other is polarity.
A molecule is said to be polar if that molecule possesses a dipole moment. This also means that the molecule has a positive end and a negative end. A typical example of such a molecule is water.
In chemistry, the general rule is that like dissolves like. A polar substance dissolves a polar substance and vice versa.
Therefore we can see that, a microscopic property that helps determine whether or not two substances will dissolve with each other is polarity.
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Both evaporation and condensation are in the water cycle. evaporation is when water changes from liquid to gas meanwhile condensation is when water vapor cools and goes from gas to liquid.
Answer:
18.58 moles of Cu
Solution:
Data Given:
Chemical Formula of Tennantite = Cu₁₂As₄S₁₃
Mass of Cu₁₂As₄S₁₃ = 2290 g
M.Mass of Cu₁₂As₄S₁₃ = 1479.06 g.mol⁻¹
Step 1: Calculate Moles of Cu₁₂As₄S₁₃ as,
Moles = Mass ÷ M.Mass
Putting values,
Moles = 2290 g ÷ 1479.06 g.mol⁻¹
Moles = 1.548 mol
Step 2: Calculate Moles of Cu,
As,
1 mole of Cu₁₂As₄S₁₃ contains = 12 moles of Cu
So,
1.548 mol of Cu₁₂As₄S₁₃ will contain = X moles of Cu
Solving for X,
X = (1.548 mol × 12 mol) ÷ 1 mol
X = 18.58 moles of Cu
