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AveGali [126]
3 years ago
5

2 Chemistry Questions. Help?

Chemistry
1 answer:
Sliva [168]3 years ago
3 0
<span>C-C and C-H bonds are relatively stable because 

they have low bond dissociation energy 


13. Dispersion forces are caused by the __________, 

motion of electrons 

Hope this answers the question. Have a nice day.</span>
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3 years ago
Which molecule,when added to a solution, would give the solution the highest ph?
olchik [2.2K]
The correct answer among the choices given is option A. Hydrochloric acid is a much stronger acid than sulfuric acid given that the concentration both is equal. This can be proved by the pKa of these acids. Hydrochloric acid has a pKa of -6  while the pKa of sulfuric acid is -3. The lower the value of the pKa, the stronger the acidity of the substance.
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3 years ago
What is T in the equation G = H - TS?
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4 0
3 years ago
What is the barometric pressure exerted in pascals (Pa) of a column of decane (density = 0.7300 g/cm3) 636.2 mm in height?
BartSMP [9]
<h3>Answer:</h3>

4551.37 Pascals

<h3>Explanation:</h3>

The pressure refers to the force exerted by a substance per unit area.

The pressure is liquid is calculated by;

P = height × density × gravitational acceleration

In this case;

Height = 636.2 mm

Density = 0.7300 g/cm³

g = 9.8 N/kg

We need to convert mm to m and g/cm³ to kg/m³

Therefore;

Height = 636.2 mm ÷1000

           = 0.6362 m

Density = 0.73 g/cm³ × 1000 kg/m³

             = 730 kg/m³

Then, we can calculate the pressure;

Pressure = 0.6362 m × 730 kg/m³ × 9.8 N/kg

              = 4551.3748 pascals

               = 4551.37 Pascals

Therefore, the pressure of the column of decane is 4551.37 Pascals

5 0
3 years ago
2. Calculating density of an object with a regular shape
Tatiana [17]

D= 0.10125kg/m^3

EXPLAINATION
Density =mass/volume
D= 226.8/20 x 8 x 14
D=226.8/2240
D= 0.10125kg/m^3
Hope it was helpfull!!
6 0
3 years ago
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