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forsale [732]
3 years ago
9

ASAP! Choose all that apply. Which of the following chemicals are utilized in modern medicine? NaCl Ba N 2O Si C 14H 10O 4 H 2S

Ca
Chemistry
2 answers:
Zinaida [17]3 years ago
4 0

Answer:

14 H i think , but i believe that thats the answer

Softa [21]3 years ago
4 0

Answer:

Ba, N20, C 14H 10O 4

Explanation:

Ba: Calcium atoms in bones absorb x-rays, allowing doctors to clearly see the body's skeleton. X-rays can also be used to see blood vessels and internal organs. Special liquids, such as compounds made with the element barium (Ba), are swallowed by the patient, or injected into the bloodstream. The liquids help absorb x-rays, making certain tissues show up more clearly.

N20: Certain chemicals can be used as an anesthetic. Nitrous oxide (N2O) is commonly used in surgery and dentist offices.

C 14H 10O 4: Many acne medications contain benzoyl peroxide (C14H10O4), a compound that releases oxygen during a chemical reaction with skin. The oxygen kills anaerobic bacteria, which cannot live in the presence of oxygen.

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GIVING THE BRAINLIEST
Allushta [10]

The correct answer is A. Charging by friction

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When someone rubs a comb with their hair when they are combing it and the hair sticks to the comb occurs a phenomenon called electrization, in which a neutral body becomes charged or loses an electrical charge (electrons). One way that electrization occurs is through the rubbing of two neutral bodies which causes one to be positively charged and the other negatively causing them to attract each other by magnetism. Therefore, the correct answer is A. Charging by friction

4 0
3 years ago
A 100g piece of iron at 150oC is emersed in 268.5 g of water at 20oC. the temperature of both iron and water became 25oC. If the
borishaifa [10]

Answer:

cW = 4.2J/g.k

Explanation:

Heat gained = Heat lost

iron(mc∆€) = water(mc∆€)

mi= 100g

ci = 0.449

∆€i= 150-25 = 125

...

mw= 268.5g

cw = ?

∆€w=25-20 = 5

...

100×0.449×125= 268.5×cw×5

5612.5= 1342.5cw

cw = 5612.5/1342.5

cw= 4.18 ~ 4.2J/g.K

4 0
2 years ago
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