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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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The total mass of the reactants is ________ the total mass of the products in a chemical reaction.
jonny [76]

Answer:

The total mass of the reactants is <u>equal to </u>  the total mass of the products in a chemical reaction.

Explanation:

5 0
3 years ago
The distance between the nuclei of two iron atoms is about 4 angstroms.a. Trueb. False
vladimir2022 [97]

Answer:

The correct option is b. false

Explanation:

The distance between the nucleus of an atom and it's outermost shell is called is atomic radius. The atomic radius of an Iron atom (Fe) is 0.126 nm or 1.26 angstrom. The distance between the nuclei of two Iron atoms will be 1.26 × 2 = 2.52 angstroms.

Since 2.52 angstroms is lower than 4 angstroms, the correct option is false

8 0
3 years ago
I need this all by today because I’m get 0 and my science teacher is being a
Shalnov [3]
The cnidarias life cycle has 2 life cycles polyp and medusa
7 0
3 years ago
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AP chem. Sublevels!!!!!!!!!!!
slavikrds [6]

Answer:

2d

Explanation:

The lowest d is 3d.

Hope this helps!

5 0
2 years ago
`You have to be careful about pouring drano down your pipes since it is mainly hydrochloric acid--you can't do it if they are ma
Zanzabum

Answer:

6.67 moles

Explanation:

Given that:-

Moles of hydrogen gas produced = 10.0 moles

According the reaction shown below:-

2Al + 6HCl\rightarrow 2AlCl_3 +3H_2

3 moles of hydrogen gas are produced when 2 moles of aluminium undergoes reaction.

Also,

1 mole of hydrogen gas are produced when \frac{2}{3} moles of aluminium undergoes reaction.

So,

10.0 moles of hydrogen gas are produced when \frac{2}{3}\times 10.0 moles of aluminium undergoes reaction.

<u>Moles of Al needed  = \frac{2}{3}\times 10.0 moles = 6.67 moles</u>

6 0
3 years ago
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