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yulyashka [42]
3 years ago
15

Why do X-Ray technicians stand behind a shield when giving X-Rays to patients?

Chemistry
1 answer:
Sladkaya [172]3 years ago
6 0
The answer is D.
When one is exposed to large doses of X-Rays, this can cause cell damages or even cancer.
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What is the difference in 3S, 3D and 3P? Is P higher than S in some cases in terms of 3?​
kogti [31]
Yes.................
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2 years ago
Data for CH3COOH(l) + C2H5OH(l) CH3COOC2H5(l) + H2O(l) balance were obtained at 100. The initial concentrations of the reagents
Sphinxa [80]

Answer:

Kc = 3.94

Explanation:

CH₃COOH(g) + C₂H₅OH(g) → CH₃COOC₂H₅(g) + H₂O(g)

Liquids aren't included in the equilibrium constant, but at 100°C, all four compounds are a gas.  So the equilibrium equation is:

Kc = [CH₃COOC₂H₅] [H₂O] / ([CH₃COOH] [C₂H₅OH])

Set up an ICE table for each row and calculate the value of Kc.  Then average the results.  (See picture.)

Kc ≈ (3.919 + 4.012 + 3.902) / 3

Kc ≈ 3.94

3 0
3 years ago
Glass has a specific heat of 0.16 calories/gram°C.
Sloan [31]
Calories heat added = Mass of glass times temp. increase times specific heat of glass

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7 0
2 years ago
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Predidt the direction and the relative value of the dipole moment of the following bond: C-Cl
WINSTONCH [101]

Answer:

D. C → Cl electronegativity difference > 0.5

Explanation:

The electro negativity of an atom in a compound refers to its ability to attract the electrons of a bond towards itself.

On the Pauling's scale, carbon has an electro negativity value of 2.55 while that of chlorine is 3.16. The difference in electro negativity between the both atoms is about 0.61.

The dipole is aslways directed towards the more electronegative atom. Hence the direction is ; C → Cl

5 0
3 years ago
PLEASE HELP
Sergio [31]

Answer:

C. The Protons

5 0
3 years ago
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