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Sindrei [870]
3 years ago
11

Which of these best explains why the hydrogen atoms in a water molecule are attracted to Cl− ions in sodium chloride (NaCl)?

Chemistry
2 answers:
siniylev [52]3 years ago
5 0
<h2>Answer:</h2><h3>C. The hydrogen atoms have partial positive charges</h3><h3>Hopefully this helps! :)</h3>
Kisachek [45]3 years ago
5 0

Answer: C. The hydrogen atoms have partial positive charges.

Explanation: The solubility of substances is governed by: Like dissolves like, which states that polar compounds are soluble in polar solvents and non polar compounds are soluble in non polar solvents.

Water being polar in nature dissolves NaCl by getting between the oppositely charged ions of solute and thus decreasing the forces of attraction between the ions. The positively charged Na^+ ions are attracted to positive pole of water which is hydrogen and the negatively charged Cl^- is attracted to negative pole of water which is oxygen.

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One method for preparing pure iron from Fe2O3 is by reaction with carbon monoxide.Fe2O3(s)+CO(g)→Fe(s)+CO2(g) How many moles of
larisa [96]

Answer:

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

Explanation:

Given data:

Mass of Fe₂O₃ = 122 Kg ( 122×1000 =  122000 g)

Moles of CO = ?

Solution:

Chemical equation:

Fe₂O₃ + 3CO  → 2Fe + 3CO₂

Number of moles of  Fe₂O₃:

Number of moles = mass/ molar mass

Number of moles = 122000 g /159.69 g/mol

Number of moles = 764 mol

Now we will compare the moles of Fe₂O₃ with CO.

                               Fe₂O₃            :            CO  

                                  1                  :             3

                               764                :             3×764  =2292 mol

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

6 0
3 years ago
Which organic prefix is matched with the number of carbon atoms that it represents?
Mandarinka [93]

Answer:heat-,7

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8 0
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if 2.22 moles of ammonia (NH3) decomposes according to the reaction shown how many moles of hydrogen (H2) are formed?
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Answer:

five(5) hydrogen are formed

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Why aren’t two hydrogen atoms bonded together considered a compound?
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Answer:

A compound by definition contains at least 2 different kinds of atoms. A Hydrogen molecule contains only one kind of atom, 2 hydrogen atoms

4 0
3 years ago
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mezya [45]
No, sex cells are always sex cells
8 0
3 years ago
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