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Mnenie [13.5K]
3 years ago
10

I need help on these 2 questions plzz can someone help

Chemistry
2 answers:
fiasKO [112]3 years ago
6 0

Answer:

plant meat............

Ivan3 years ago
3 0

Answer:

plants meat

Explanation:

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if a gas sample in a balloon occupies 1.5 L at atmospheric pressure, what would be the pressure (in mmHg) if the volume was redu
Nata [24]

Answer:

1425 mmHg.

Explanation:

The following data were obtained from the question:

Initial volume (V1) = 1.5 L

Initial pressure (P1) = 1 atm

Final volume (V2) = 0.8 L

Final pressure (P2) =?

Next, we shall determine the final pressure of the gas by using the Boyle's law equation as follow:

P1V1 = P2V2

1 × 1.5 = P2 × 0.8

1.5 = P2 × 0.8

Divide both side by 0.8

P2 = 1.5/0.8

P2 = 1.875 atm

Finally, we shall convert 1.875 atm to mmHg.

This can be obtained as follow:

1 atm = 760 mmHg

Therefore,

1.875 atm = 1.875 × 760 = 1425 mmHg.

Therefore, the new pressure of the gas is 1425 mmHg.

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3 years ago
Electrical energy is the energy of ____<br><br> 4O POINTS!!!
olga nikolaevna [1]

Electrical energy is the energy of electrons

4 0
3 years ago
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Iron is extracted from its ore (hematite) in the blast furnace. Which gas is produced as a waste product?
Diano4ka-milaya [45]

Answer:

CO2

Explanation:

CO2 or carbon dioxide is produced when iron is extracted from its ore. Carbon monoxide Co is used as reducing agent in iron extraction. In this reaction iron ore is reduced to iron and CO is oxidized to CO2 or carbon dioxide which is released in the process. There extraction of iron is redox reaction.

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HOW do we know about life from before human time?
GenaCL600 [577]

B fossils

hope this helps :)

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How many atoms of Mg are present in 97.22 grams of Mg?
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Answer:

b.......

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b.....

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