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solniwko [45]
2 years ago
10

HELP ME GIVE BRAINLEAST HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

PPPPPPPPPPPPPPPPPPPPPP

Chemistry
2 answers:
wlad13 [49]2 years ago
5 0

Answer:A

Explanation:A is the answer

lord [1]2 years ago
3 0

Answer:

Explanation:

Option D because they have to substitute each other

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How many nitrogen atoms are in 2.79 mo.of NH3
alexandr1967 [171]
1 mol of any particles has 6.02 * 10 ²³ particles.

If we look at 1 NH3 (1 mol NH3 or 1 molecule NH3), we can see that 1 molecule NH3 has 1 atom of N and 3 atoms of H; also 1 mole of NH3 has 1 mole of N atoms and 3 moles of H atoms.

So, 1 mol of NH3 has 1 mol of N atoms,
 and 2.79 mol NH3 have 2.79 mol of N atoms.

2.79 mol of N atoms* 6.02 * 10 ²³ N atoms/ 1 mol N atoms = 1.68*10²⁴ N-atoms 

 Answer is 1.68*10²⁴ N-atoms. 
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How many valance electrons are in an Adam of each element in group 15 in the periodic table
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3 years ago
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Which element does not have the same number of electrons in its outermost shell as the other elements in its group?(1 point)
Natalija [7]

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7 0
2 years ago
PLZ HELP, GIVING BRAINLIEST!!
andrew-mc [135]

Answer:

Option B. Decreasing the temperature of the solvent

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Solubility is mostly enhanced by increasing the temperature of the solvent or solution. This means that am increase in temperature will increase the solubility and decreasing the temperature will decrease the solubility.

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