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Natalka [10]
2 years ago
13

.

Chemistry
1 answer:
Alex17521 [72]2 years ago
5 0

Answer: Iron

Explanation: There are little minnerals that make it magnetic.

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An isotope of nitrogen containing 7 neutrons would be nitrogen-7
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<h3>A. an acidic............</h3>
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15. When traveling through a smoke-filled area, a person must be able
maxonik [38]

When traveling through a smoke-filled area, a person must be able to have distance of at least 4 feet in order to safely reach a fire exit. That is option C.

<h3>What is a smoke-filled area?</h3>

Smoke-filled area is an enclosed area that is filled with smoke gas that is usually made up of carbon monoxide.

The smoke-filled area is usually caused by

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  • Burning of plastics or chemical products

  • Release of fuming gases.

When there is smoke-filled area die to fire out break, there are some guidelines to follow to safely reach the fire exit early enough.

The importance of these guidelines include the following:

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  • locate safety points,

  • determine the safest way in and out of a building, and

  • map out evacuation routes.

The affected individual should get down and crawl while taking short breath through the nose because cleaner air is nearest to the floor.

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5 0
2 years ago
Write the chemical formula of tetraphosphours octasulfide
ArbitrLikvidat [17]

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P4 S8

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8 0
3 years ago
How will temperature affect the spontaneity of a reaction with positive H and S?
BartSMP [9]

Answer:

D.A high temperature will make it spontaneous.

Explanation:

we know that

Δ G = Δ H - TΔS

For spontaneous reaction

Δ G should be negative . If Δ G = 0

Δ H =  TΔS

T =   Δ H / Δ S

At temperature above this T , Δ G becomes negative if Δ S and ΔH are  positive .

So at a  high temperature will make it spontaneous.

5 0
3 years ago
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