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Mandarinka [93]
3 years ago
13

PLZZZ HELP I NEED ANSWER ASAP THE FIRST ANSWER GETS BRAINLIEST

Chemistry
1 answer:
zalisa [80]3 years ago
6 0

Answer:through the conduction from magma to water and rocks

Explanation:

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A 13.0% solution of K2CO3 by mass has a density of 1.09 g/cm3. Calculate the molality of the solution.
Bingel [31]

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6 0
3 years ago
The H 2 produced in a chemical reaction is collected through water in a eudiometer. If the pressure in the eudiometer is 760.0 t
siniylev [52]

Answer:

the pressure (torr) of theH₂ gas is 736.2 torr

Explanation:

Given that

The H₂ gas  produced in a chemical reaction is collected through water in a eudiometer; during this process, the gas collected contains some droplets of water vapor along with these gas.

So; the total pressure in the eudiometer = Pressure in the H₂ gas  - Pressure of the water vapor

Where;

P_{Totsl} =  total pressure in the eudiometer = 760.0 torr

P_{H_2} = Pressure in the H₂ gas  = ???

P_{H_2O} = Pressure in the water vapor  = 23.8 torr

Now:

P_{Totsl} = P_{H_2} + P_{H_2O}

- P_{H_2} = + P_{H_2O} - P_{Totsl}

P_{H_2}  = - P_{H_2O} + P_{Totsl}

P_{H_2}  =  (- 23.8 + 760) torr

P_{H_2}  = 736.2 torr

Thus; the pressure (torr) of theH₂ gas is 736.2 torr

8 0
4 years ago
What is the half-life of a radioisotope if 25.0 grams of an original 200.-gram sample of the isotope remains unchanged after 11.
erastova [34]
1. 200/2=100. 100/2=50. 50/2=25. So that's 3 to get to 25. 

2. 11.46/3=3.82

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7 0
3 years ago
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Atoms lose, gain, or share valence electrons to satisfy ________.
zhannawk [14.2K]

<em>The Octet Rule requires all atoms in a molecule to have 8 valence electrons--either by sharing, losing or gaining electrons--to become stable. For Covalent bonds, atoms tend to share their electrons with each other to satisfy the Octet Rule.</em>

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Neutralization is the reaction of an acid and a base which form water and a salt
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