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pashok25 [27]
4 years ago
5

radicals react quickly to form covalent bonds with nearby substances because they have ___ available for bonding.

Chemistry
2 answers:
Orlov [11]4 years ago
8 0

Answer:

<h2>Unpaired electron.</h2>

Explanation:

Radicals are formed when a covalent bond breaks and leave an unpaired electron, this process is known as homolysis, because that bond breaking creates to species with those type of electrons.

antoniya [11.8K]4 years ago
3 0
Electrons????????????
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You have 25.0mL HCl of unknown concentration. It takes 12.5 mL of 0.2 M NaOH to neutralize the acid. Determine the concentration
Ugo [173]

Answer:

1) The concentration of HCl = 0.1 M.

2) The table that can be used to organize the information correctly is C.

Explanation:

<u><em>1) The concentration of HCl:</em></u>

  • We know that the no. of millimoles of the acid is equal to the no. of millimoles of the base at the neutralization point.

which means that: <em>(MV)HCl = (MV)NaOH,</em>

M of HCl = ??? M, V of HCl = 25.0 mL.

M of NaOH = 0.2 M, V of NaOH = 12.5 mL.

∴ M of HCl = (MV)NaOH/V of HCl = (0.2 M)(12.5 mL)/(25.0 mL) = 0.1 M.

<em>2) The table that can be used to organize the information correctly is C</em>

<em></em>

<em>Table A and B are the same and reported volume of HCl and NaOH is wrong.</em>

<em>Table C is right, contain the correct volumes and concentration of NaOH and missed the concentration of HCl which is 0.1 M.</em>

<em>Table D reported the volume and the concentration of HCl wrongly and also the concentration of NaOH. The data reported of HCl and NaOH is reversed.</em>

6 0
3 years ago
You will have a 500mL solution of salt water. From this you will take 10.0mL and place it on a balance. You find that the 10.0mL
anastassius [24]
<h2>Answer:</h2>

Given data:

Volume of solution: 500 ml

Mass of 10 ml solution: 10.7 g

Density of whole solution: ?

<h3>Solution:</h3>

Mass of 500 ml solution : 10.7/10 * 500 =  535 g

Density = Mass/ volume

<u>Putting values in formula :</u>

D = 535/500 = 1.07 g/ml

                                         Hence    Density = 1.07 g/ml

7 0
3 years ago
Consider stoichiometric combustion of gasoline and air. Assume a full tank of gasoline holds 50 L (approximately 13.2 gallons),
Inessa05 [86]

Answer:

520 kg

Explanation:

Let's consider the combustion of isooctane.

C₈H₁₈(l) + 12.5 O₂(g) → 8 CO₂(g) +  9 H₂O(l)

We can establish the following relations:

  • 1 mL of C₈H₁₈ has a mass of 0.690 g (ρ = 0.690 g/mL).
  • The molar mass of C₈H₁₈ is 114.22 g/mol.
  • The molar ratio of C₈H₁₈ to O₂ is 1:12.5.
  • The mole fraction of O₂ in air is 0.21.
  • The molar mass of air is 28.96 g/mol.

50 L of isooctane require the following mass of air.

50 \times 10^{3}mLC_{8}H_{18}.\frac{0.690gC_{8}H_{18}}{1mLC_{8}H_{18}} .\frac{1molC_{8}H_{18}}{114.22gC_{8}H_{18}} .\frac{12.5molO_{2}}{1molC_{8}H_{18}} .\frac{1molAir}{0.21molO_{2}} .\frac{28.96 \times 10^{-3}kgAir}{1molAir} =520kgAir

5 0
4 years ago
A mixture of so2(g) and o2(g), formed by the complete decomposition of so3(g), is collected over water at 34°c at a total pressu
Sedbober [7]
The decomposition of so3 to so2 gas and o2 gas can be described in the balanced chemical equation: 

2so3(g) = 2 so2 (g) + 02(g). 

so assuming a complete reaction, the ratio of so2 gas to total products is 2/3 while that of 02 is 1/3. 

Subtracting water's water vapor pressure, 760-40 mm hG = 720 mm Hg.

then the products partial pressures are

so2 = 2/3 * (720) = 480 mm Hg.
o2 = 720-480 = 240 mm Hg.


8 0
3 years ago
A substances formed from atoms of two or more elements is called a _____? compound molecule mixture
dalvyx [7]
Its a molecule

hope that helps 
5 0
3 years ago
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