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ikadub [295]
3 years ago
14

Which of these species are free radicals? check all that apply. check all that apply. no2 no o o2 o3?

Chemistry
1 answer:
professor190 [17]3 years ago
4 0
Answer: NO2, NO, and O2.

<span>Free radicals are toxic substances produced by the body. In normal circumstances,the body can neutralize but<span> when the level of these substances is to much,they accumulate and can generate diseases, such as osteoporosis and cancer.</span></span>


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For the gaseous reaction of carbon monoxide and chlorine to form phosgene (COCl₂):(b) Assuming that ΔS° and ΔH° change little wi
maksim [4K]

ΔG° at 450. K is -198.86kJ/mol

The following is the relationship between  ΔG°,  ΔH, and  ΔS°:

ΔH-T ΔS = ΔG

where  ΔG represents the common Gibbs free energy.

the enthalpy change,  ΔH

The temperature in kelvin is T.

Entropy change is  ΔS.

ΔG° = -206 kJ/mol

ΔH° equals -220 kJ/mol

T = 298 K

Using the formula, we obtain:

-220kJ/mol -T ΔS° = -206kJ/mol

220 kJ/mol +206 kJ/mol =T ΔS°.

-T ΔS = 14 kJ/mol

for ΔS-14/298

ΔS=0.047 kJ/mol.K

450K for the temperature Completing a formula with values

ΔG° = (450K)(-0.047kJ/mol)-220kJ/mol

ΔG° = -220 kJ/mol + 21.14 kJ/mol.

ΔG°=198.86 kJ/mol

Learn more about ΔG° here:

brainly.com/question/17214066

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7 0
1 year ago
Law of Conservation of Mass in terms of atoms
VARVARA [1.3K]

No atoms are lost or made during the chemical reaction so the total mass of the products is equal to the total mass of the reactants. In an atom, protons and neutrons contribute to the mass and since the number of them doesn’t change, the mass doesn’t either.

4 0
2 years ago
Calculate the molarity of 0.850 mol of Na2S in 1.70 L of solution.
Basile [38]

Molarity is simply the ratio of the number of moles of a substance over the total volume of the solution. Assuming that the addition of 0.850 moles does not change the overall volume of 1.70 L, therefore molarity is simply:

 

Molarity = 0.850 moles / 1.70 L = 0.5 moles / L = 0.5 M

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3 years ago
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Answer:

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Explanation:

The student has precipitated and digested the barium sulfate on his/her side. But on the addition of BaCl_2 in the solution, the solution become cloudy. This happened because incomplete precipitation of barium sulfate by the student. When BaCl_2 is added, there are still sulfate ions present in the solution with combines with BaCl_2 and forms BaSO_4 and the formation of this precipitate makes the solution cloudy.

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3 years ago
What is simple displacement reaction???give examples.
VARVARA [1.3K]

Answer:

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