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ipn [44]
2 years ago
13

Lewis diagrams of molecules of three different hydrocarbons are shown above. Which of the following claims about the molecules i

s best supported by the diagrams?

Chemistry
1 answer:
muminat2 years ago
3 0

Answer:

D

Explanation:

Seeing the Lewis formula for each of the molecules, we can attempt to write the condensed structural formula for each.

What we notice is that while there are purely single bonds between the carbon atoms in the first molecule, there is a double bond in the second molecule and a triple bond in the third

What we can deduce from this is that these are alkanes , alkenes and alkynes

The alkynes have the strongest of the three bonds and thus they have the strongest bonds in the mix

Since molecule 3 is an alkyne, then we can say that it has the strongest of the bonds

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An ion with 5 protons, 6 neutrons and a charge of 3+ has an atomic number of ____.
Umnica [9.8K]

Answer:An ion with 5 protons, 6 neutrons and a charge of 3+ has an atomic number of 5

Explanation:

3 0
2 years ago
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A gas sample enclosed in a rigid metal container at room temperature (20.0∘C∘C) has an absolute pressure p1p1p_1. The container
choli [55]

Answer: p2 = 1.06p1

Explanation: pressure increases with temperature increase.

According to Gass law

P1/T1 = P2/T2

T1 = 20°c = 20 +273 = 293k

T2 = 40°c = 40 +373 = 313k

Therefore

P2 = P1T2/T1 = 313P2/293

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3 0
2 years ago
The means of X ? ⊙_⊙⊙_⊙⊙_⊙​
julsineya [31]

Answer:

x means unknown it is an unknown value.

For example if you have 2 x you have 2 u know values.

Explanation:

If you want us to explain it further please provide a picture.

5 0
2 years ago
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A 17.0-g sample of hf is dissolved in water to give 2.0 x 10 2 ml of solution. the concentration of the solution is:
fredd [130]
 The  concentration  of the solution  is   4.25 M

 Explanation

molarity=moles/volume in liters

moles  = mass/molar mass
molar mass  of HF = 19 + 1 =  20 g/mol
moles is therefore = 17.0 g/ 20 g/mol  = 0.85  moles

volume in  liters = 2  x10^2ml/1000 = 0.2  liters

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8 0
2 years ago
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A cylindrical glass tube 12.7 cm in length is filled with mercury (density =13.6 g/mL). The mass of mercury needed to fill the t
Kay [80]

Answer:

The inner diameter of the tube is 0.4410 cm.

Explanation:

Height upto which mercury is filled = 12.7 cm

Mass of mercury = 105.5 g

Density of mercury = 13.6 g/mL =13.6 g/cm^3

Volume of mercury:

\frac{Mass}{Density}=\frac{105.5 g}{13.6 g/cm^3}=7.7573 cm^3

A mercury in cylindrical glass tube is at height of 12.7 cm.

The radius of the inner diameter of the glass tube = r

Volume of cylinder = \pi r^2h

7.7573 cm^3=3.14\times r^2\times 12.7 cm

r = 0.4410 cm.

7 0
2 years ago
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