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lesya692 [45]
2 years ago
13

The last column of the periodic table contains the noble gases elements that do not easily form chemical bonds. Why don’t these

gases
tend to form chemical bonds?
Chemistry
1 answer:
ozzi2 years ago
6 0

Answer:

its is because the chemicals are very diffraction from each other so which makes it difficult to form a chemical bond.

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If a combination reaction takes place between potassium and chlorine what is the product
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It would be potassium chloride or kcl
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A fixed mass of gass occupies a volume of 200cm at 21°c calculate it's volume at standard temperature
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A compound has a molar mass of 100 g/mol and the percent composition (by mass) of 65.45% C, 5.45% H, and 29.09% 0. Determine the
coldgirl [10]

Answer:

B) C3H3O and C6H6O2

Explanation:

Given data:

Molar mass of compound = 100 g/mol

Percentage of hydrogen = 5.45%

Percentage of carbon = 65.45%

Percentage of oxygen = 29.09%

Empirical formula = ?

Molecular formula = ?

Solution:

Number of gram atoms of H = 5.45 / 1.01 = 5.4

Number of gram atoms of O = 29.09/ 16 = 1.8

Number of gram atoms of C = 65.45 / 12 = 5.5

Atomic ratio:

            C                      :      H            :         O

           5.5/1.8              :     5.4/1.8     :        1.8/1.8

            3                      :        3          :        1

C : H : O = 3 : 3 : 1

Empirical formula is C₃H₃O.

Molecular formula:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

Empirical formula mass = 12×3 + 1.01 ×3 + 16×1 = 55.03  

n = 100 / 5503

n = 2

Molecular formula = n (empirical formula)

Molecular formula = 2 (C₃H₃O)

Molecular formula = C₆H₆O₂

3 0
2 years ago
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