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Colt1911 [192]
3 years ago
6

A doctor uses an instrument(s) that emits light and allows the doctor to view the inside of a patient’s intestine.

Chemistry
2 answers:
jeka943 years ago
8 0

Answer:

its fiber optics. the other answers don't make sense.

Explanation:

svlad2 [7]3 years ago
4 0

Answer:

I'd say telescope

Explanation:

A microscope is used to observe particles that cannot be seen with the naked eye

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andrey2020 [161]

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5 0
3 years ago
5) answer is A
Burka [1]

Answer:

A)  positive; added

Explanation:

Based on the reaction:

2NaHCO3(s) + 129kJ → Na2CO3(s) + H2(g) + CO2(g)

<em>2 moles of NaHCO3 requires 129kJ to produce 1 mole of Na2CO3, 1 mole of H2 and 1 mole of CO2.</em>

<em />

That means, the energy must be added being, thus, an exothermic reaction. The exothermic reactions have ΔH >0.

Thus, right answer is:

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3 0
2 years ago
Waves transport water in the deep ocean toward the coastlines. True or false
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Most likely true

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7 0
3 years ago
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A

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4 0
3 years ago
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