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blsea [12.9K]
3 years ago
9

please help me I am begging you.. )))): PLEASE HELP ME ~~~~~~~~~~~~~~~~~~~~~~ A football player experiences acute pain in his kn

ee. Which of the following methods can a doctor use to diagnose the reason for the pain? --_-_-____- A.) Use infrared radiation from warm objects to look inside the knees. B.) Use radio waves emitted by radioactive substances to look at bones. C.) Use radiations emitted by very hot objects to penetrate the skin and bones. D.) Use x‒ray radiation to see if there are any fractured bones.
Chemistry
2 answers:
Eddi Din [679]3 years ago
8 0

Answer:

d Use x‒ray radiation to see if there are any fractured bones.

Rufina [12.5K]3 years ago
6 0

Answer:

D. Use x-ray radiation to see if there are any fractured bones.

Explanation:

The football player may have fractured a bone while he was practicing or playing, so it is best for the doctor to check if the player broke his bone or fractured it.

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How many moles of silver are in 8.46E24 atoms of silver?​
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How many grams of H 2O are produced from 28.8 g of O 2? (Molar Mass of H 2O = 18.02 g) (Molar Mass of O 2=32.00 g) 4 NH 3 (g) +
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Explanation:

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\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} O_2=\frac{28.8g}{32.00g/mol}=0.900moles

The balanced chemical reaction is:

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According to stoichiometry :

7 moles of O_2 produce =  6 moles of H_2O

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Thus 13.9 g of H_2O will be produced from the given mass of oxygen

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