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3 years ago

4. What electrons are involved in chemical bonding?

Chemistry

1 answer:

Yanka [14]3 years ago

4 0

Answer:

The electrons that participate in chemical bonds are the valence electrons, which are the electrons found in an atom 's outermost shell.

Explanation:

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Acid base reaction is called nuetralization reaction why?

Lesechka [4]

Answer:

Explanation:

You have an acid that is acidic or a base that is basic. When you mix the two, they form water (assuming those are bronsted-lowry acids and bases) which is neutral.

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3 years ago

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Do CO2 and h2o have the same geometry

Svetach [21]

No, they do not. Carbon dioxide has a linear geometry because the lone pair and bond pair repulsion cancels out; however, water has a bent structure because only the oxygen atom possesses a lone pair which brings the bonding electron pairs closer.

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3 years ago

Which of the following rocks would probably be made up of the largest

IrinaVladis [17]

Answer:

Granite will be made up of the largest

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3 years ago

A compound is composed of 58.8% c, 9.8% h, and 31.4% o, and the molar mass is 102 g/mol. what is the molecular formula for this

Ivahew [28]

The solution would be like this for this specific problem:

Moles of carbon = 58.8 / 12 = 4.9 
Moles of hydrogen = 9.8 / 1 = 9.8 
Moles of oxugen = 31.4 / 16 m= 1.96 
Ratio 4.9 / 1.96 = 2.5 9.8 / 1.96 = 5.0 1.96 / 1.96 = 1

Simplest formula = C5H10

I hope this helps and if you have any further questions, please don’t hesitate to ask again.

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3 years ago

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When taking a measurement with a pH meter, keep the instrument in the ______________ until it is needed. Rinse the pH meter with

nydimaria [60]

Answer:

Storage solution; deionized water; stabilizes.

Explanation:

The pH scale measures the concentration of hydrogen ions in acidic and alkaline solutions.

In chemistry, it literally means power of hydrogen ions and it is a measure of the molar concentration of hydrogen ions in a particular solution, thus specifying the acidity, neutrality or basicity of chemical solutions.

Mathematically, the pH of a solution is given by;

$pH = -log_{10}(H^{+})$

Hence, a solution with a pH of 7 is neutral. Also, a solution with a pH below 7 is acidic but basic (alkaline) if it's pH is above 7.

A pH meter can be defined as a scientific instrument or device designed and developed for the measurement of the hydrogen-ion concentration in water-based solutions, in order to determine their level of acidity or alkanility.

When using a pH meter to take a measurement, you should keep it in a storage solution until it is needed. Also, a deionized water should be used to rinse the pH meter and gently pat dry.

Furthermore, the pH meter should be placed in a given sample solution and a reading of the measurement taken when the pH of the solution stabilizes.

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3 years ago