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Sophie [7]
2 years ago
9

Someone please help I will give brainliest!!!!!!!

Chemistry
1 answer:
Alex2 years ago
7 0

Answer:

Option 1:

Cu(NO3)2 + Ag

hope this was helpful

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irakobra [83]
1. I think it is true?
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3. True
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6 0
2 years ago
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Pavlova-9 [17]

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Molecules consist of multiple atoms put together to create a new form.

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10. Which term is same for one mole of O2 and one mole of ethane C2H6
melamori03 [73]

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b) Number of molecules

Explanation:

3 0
2 years ago
Calculate the vapor pressure at 35ºC of a solution made by dissolving 20.2 g of sucrose (C12H22O11)in 60.5 g of water. The vapor
sukhopar [10]

Answer:

P' = 41.4 mmHg → Vapor pressure of solution

Explanation:

ΔP = P° . Xm

ΔP = Vapor pressure of pure solvent (P°) - Vapor pressure of solution (P')

Xm = Mole fraction for solute (Moles of solvent /Total moles)

Firstly we determine the mole fraction of solute.

Moles of solute → Mass . 1 mol / molar mass

20.2 g . 1 mol / 342 g = 0.0590 mol

Moles of solvent → Mass . 1mol / molar mass

60.5 g . 1 mol/ 18 g = 3.36 mol

Total moles = 3.36 mol + 0.0590 mol = 3.419 moles

Xm = 0.0590 mol / 3.419 moles → 0.0172

Let's replace the data in the formula

42.2 mmHg - P' = 42.2 mmHg . 0.0172

P' = - (42.2 mmHg . 0.0172 - 42.2 mmHg)

P' = 41.4 mmHg

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3 years ago
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