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Degger [83]
3 years ago
9

Write the electronic configuration of the first 20 element​

Chemistry
1 answer:
yuradex [85]3 years ago
3 0
Argon -Potassium-carbon
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Products of MnO + CL2
Alenkinab [10]

If the equation is complete the products would be manganese chloride and oxygen gas would be given off.

MnCl2 + O2

3 0
4 years ago
Which solution is a homogeneous mixture? sand and water salt and water salad dressing soil
Over [174]

Answer: Option (b) is the correct answer.

Explanation:

A solution whose constituent particles are uniformly distributed in the solution  is known as a homogeneous solution.

In a homogeneous solution, particles of one solute completely dissolves in the solvent. This solution is also known a true solution.

When sand and water are mixed together then after a certain interval of time sand particles will settle at the bottom. Therefore, they do not dissolve in water. So, it is not a homogeneous solution.

When salt and water are mixed together then the salt particles will dissolve in water. Therefore, it is a homogeneous solution.

Salad dressing is not a homogeneous solution as it contains different solutions like oil, lemon juice etc which does not dissolve when mixed together.

On the other hand, soil is also not a homogeneous solution because we can visualize the distinct layers present in a soil. These layers when mixed in a solution does not dissolve so they did not form a homogeneous solution.

Thus, we can conclude that out of the given options, salt and water is a homogeneous mixture.

8 0
4 years ago
Read 2 more answers
Which of the following definitions describes a chemical hazard?
Monica [59]
I think it would be A because hazardous waste would most likely be found in dust, fumes etc. I'm not sure though.
7 0
3 years ago
Read 2 more answers
Is supersaturation possible if recrystallization occurs as a solution of a solid in water cools?
Juli2301 [7.4K]

Answer:

Supersaturation is possible

Explanation:

As a solution of solid in water cools, the dissolved solid would begin to reappear as the solution is now supersaturated at that lower temperature.

When the temperature of a solution is increased, more solute are able to dissolve in solution. A supersaturated solution is one that contains more than the required amount of solute needed to saturate the solution at that particular temperature.

4 0
3 years ago
What type of energy does a ball falling through the air have?
Sveta_85 [38]

Answer:

kinectic energy

Explanation:

............

4 0
3 years ago
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