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zysi [14]
3 years ago
13

You find two containers on a chemical shelf, one labeled Cu2O(s) and a second labeled CuO(s). Are these substances the same or d

ifferent explain.
Chemistry
1 answer:
mylen [45]3 years ago
6 0

Given :

Two chemicals Cu_2O(s) and CuO(s) .

To Find :

Are these substances same or different explain.

Solution :

It might seem that the difference is none because the atoms used in the molecules are same but in different proportion .

But , their is a lot of difference between them .

The change in configuration impacts a lot in physical as well as chemical properties .

For ex :

Cu_2O is red powder while CuO is black powder .

Cu_2O is fungicide while CuO is used in batteries .

Hence , this the required solution .

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Which two things affect how a lens refracts light?
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Answer:

Explanation:

the correct answer is A

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Given the diagrams X, Y, and Z below:
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Answer: The answer is Z only

I’m assuming the answer choices are

1) x only

2) Z only - the answer

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4) X and Z

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5 0
3 years ago
A compound with the empirical formula CH 2 O has a formula mass of 180 g/mol. What is its molecular formula
olga nikolaevna [1]

Empirical formula mass

  • 12+2(1)+16
  • 28+2
  • 30g/mol

Molecular fornula mass:-180g/mol

  • n=Molecular formula mass/Empirical formula mass
  • m=180/30
  • n=6

Molecular formula:-

  • n×Empirical formula
  • 6(CH_2O
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5 0
2 years ago
When 2-phenylacetaldehyde is added dropwise to benzaldehyde in the presence of sodium hydroxide they undergo a crossed aldol rea
egoroff_w [7]
Carbonyl Compounds containing alpha proton readily donates alpha acidic proton when treated with strong Base. In given statement <span>2-phenylacetaldehyde is converted into Enolate and Enolates acts as a nucleophile and attacks carbonyl group of Benzaldehyde. The mechanism of given reaction is as follow, the movement of electrons is shown by RED arrows,</span>

7 0
3 years ago
How many molecules are in 5.50 grams of AgNO3?
mixas84 [53]

Answer:

1.95*10²² molecules are in 5.50 grams of AgNO₃

Explanation:

Being the molar mass of the elements:

  • Ag: 107.87 g/mole
  • N: 14 g/mole
  • O: 16 g/mole

then the molar mass of the compound is:

AgNO₃: 107.87 g/mole + 14 g/mole + 3*16 g/mole= 169.87 g/mole

Then you can apply the following rule of three: if 169.87 grams of the compound are present in 1 mole, 5.50 grams will be present in how many moles?

moles=\frac{5.50 grams*1 mole}{169.87 grams}

moles= 0.0324

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number applies to any substance.

You can apply the following rule of three: if by definition of Avogadro's Number 1 mole of the substance contains 6.023 * 10²³ molecules, 0.0324 moles how many molecules will it have?

molecules=\frac{0.0324 moles*6.023*10^{23} molecules}{1 mole}

molecules=1.95*10²²

<u><em>1.95*10²² molecules are in 5.50 grams of AgNO₃</em></u>

3 0
2 years ago
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