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suter [353]
3 years ago
10

PLEASE HELP, 99 POINTS When an electric current is passed through water during the process of electrolysis two gases are formed

one gas has a boiling point of -183 degrees Celsius and the other has a boiling point at -253 degrees C as a physical change or a chemical change that occurred
Chemistry
2 answers:
Oksana_A [137]3 years ago
8 0
It would be a chemical change, as it produces both hydrogen and oxygen gasses
OleMash [197]3 years ago
4 0

It would a a chemical change as you cant see the boiling points changing or being formed. Physical changes are only when you visibly and physically observe the change

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Lunna [17]
It is a mixture. it can easily be separated. 
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4 years ago
In a certain time, light travels 4.96 km in a vacuum. during the same time, light travels only 3.36 km in a liquid. what is the
Natali5045456 [20]

the refractive index of the liquid is 1.476

The refractive index, which has no dimensions, measures how quickly light passes through a substance.

It can also be described as the difference between the speed of light in a vacuum and a medium.

Refractive index is equal to the product of the light's liquid and vacuum speeds.

Therefore.

speed of light in vacuum = 4.96 km/t

speed of light in liquid = 3.36 km/t

Refractive index = 4.96/3.36

Refractive index =1.476

Therefore, the refractive index of the liquid is 1.476

To learn more about refractive index

brainly.com/question/23750645

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6 0
1 year ago
A student obtains a beaker containing a solution that is determined to have a hydrogen ion
OleMash [197]

Answer:

pH = 13.1

Basic

Explanation:

Step 1: Given data

Hydrogen ion concentration ([H⁺]): 6.7 × 10⁻¹⁴ M

Step 2: Calculate the pH of the solution

We will use the definition of pH.

pH = -log [H⁺]

pH = -log 6.7 × 10⁻¹⁴ = 13.1

  • When pH < 7, the solution is acid.
  • When pH = 7, the solution is neutral.
  • When pH > 7, the solution is basic.

Since pH > 7, the solution is basic.

6 0
3 years ago
How many moles of aspartame are present in 2.00 mg of aspartame?
ludmilkaskok [199]
Hope this helps, have a nice day!

8 0
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Which one of the following compounds will be least soluble in water?
algol [13]

Water is a polar solvent. Since, 'Like dissolves like' a polar compound will be most soluble in water whereas a non-polar compound will be the least soluble.

The increasing order of polarity for the given organic compounds is:-

CH3OCH3 < CH3NH2 < CH3CHO < CH3CH2OH

Ether is the least polar and hence least soluble in water.

8 0
3 years ago
Read 2 more answers
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