All categories

2 years ago

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]2 years ago

5 0

<h2>Answer:</h2><h3>C. The hydrogen atoms have partial positive charges</h3><h3>Hopefully this helps! :)</h3>

Kisachek [45]2 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.

You might be interested in

Which scenario would result in the fastest rate of dissolution?

soldi70 [24.7K]

C) powdered sugar in hot water because the sugar is already broken so it would be more faster than sugar cube in hot water

4 0

2 years ago

Read 2 more answers

Write three sentences that provide evidence supporting your claim about how the illustration and student observations support th

Ksenya-84 [330]

Answer:

The cell theory claims these three components:

1. cell is the smallest functional unit of life: It can be observed under the microscope that cells have various type of molecules and organelles present and have adifferent functional role in the cell which explains that the cell is the smallest unit of life as its molecules or organelles can not carry the life process on their own.

2. All organisms are made up of cells: From bacteria and archaea to human and other life forms are made up of a single cell or organization of cells in a specific pattern it also can be observed by the microscopic of blood or other tissue or cell of an organism.

3. Arise from pre-existing cell: The cells are can be studied under a microscope during cell division where we can observe that new cells come from the pre existing cell by the cell division.

5 0

3 years ago

5. Uranium has three common isotopes. If the abundance of 2U which has an atomic mass of 233.878 amu is 0.01%, the

Temka [501]

Uranium has three common isotopes. The average atomic mass of uranium is 23.7 u/atom.

<h3>What are isotopes?</h3>

Isotopes are similar elements that have a different number of protons.

Uranium has three isotopes

The abundance of 2U has an atomic mass of 233.878 is 0.01%

The abundance of U has a mass of 234.892 amu is 0.71%

The **U has an atomic mass of 237.911 amu is 99.28%

Let's assume we have 10 000 atoms of Uranium

Mass of the 0.01 atoms = 0.01 x 233.878 = 2.33878

Mass of the 0.71 atoms = 0.71 x 234.892 = 166.773

Mass of the 99.28 atoms = 99.28 x 237.911 = 23,619.80

2.33878 + 166.773 + 23,619.80 = 23,788.8

23,788.8 / 1000 = 23.7 u/atom

Thus, the average atomic mass of uranium is 23.7 u/atom.

To learn more about average atomic mass, refer to the link:

brainly.com/question/12971445

#SPJ1

4 0

1 year ago

What keeps an inflated balloon from falling down?

Y_Kistochka [10]

Rubbing leaves a balloon electrically
charged; the charged balloon polarizes the
wall.

8 0

2 years ago

Read 2 more answers

A chromatogram has three bands with Rf values of 0.25, 0.47 and 0.82 which value corresponds to the material with the highest mo

S_A_V [24]

The compound that has the highest molecular weight based on the chromatogram is the compound with Rf 0.25.

A chromatogram is an output that shows the extent of separation of the components of a mixture. If the Rf is high, then it means that the substance traveled a large distance through the plate and vice versa.

Similarly, the molecular mass of the substances correlate with the Rf value observed for each component. The components with high molecular mass always show a low Rf value.

This implies that the lowest Rf value corresponds to the largest relative molecular mass. Thus, the compound that has the highest molecular weight based on the chromatogram is the compound with Rf 0.25.

Learn more: brainly.com/question/24430548

3 0

1 year ago