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vodomira [7]
3 years ago
7

Two descriptions about physical quantities are given below:

Chemistry
2 answers:
gladu [14]3 years ago
8 0

Answer:

Quantity A is weight and Quantity B is mass

Explanation: weight has same unit as force. Mass is the quantity of matter present in a body or object

Mumz [18]3 years ago
3 0

Answer:

Quantity A is weight and Quantity B is mass

Explanation:

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Alcohol or acid will travel the furthest up the paper chromatography? pls help thanks and explain
d1i1m1o1n [39]

Answer:

True

Explanation:

Yes.

The distance that the molecules move depends on their solubility in the solvent and the size of the molecules. Heavy molecules will travel slower and therefore travel a shorter distance in the time the chromatography is run.

We know from such things as felt tip pens that colourings can be soluble in different solvents. Water soluble felt pens have colours that are - well - water soluble. Permanent felt pens have colours that are insoluble in water but that are soluble in another solvent. This could well be alcohol.

The water soluble colours may also be soluble in alcohol. The solubility in alcohol will be different from the solubility in alcohol, and so the Rf value ( the distance travelled) will also be different.

Because of the complicated shapes of the colours, the colours may not have the same order in the Rf values in the different solvents.

4 0
3 years ago
Why don't noble gasses want to react with anyone?
Zepler [3.9K]
They have a full valence shell (8 electrons in the outer shell) so they are the most stable elements on the periodic table. Therefore, they do not need to react to other elements to gain or lose elections to become stable. 
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3 years ago
What does a high number on the pH scale say about a solution?
erik [133]

Explanation:

A is cortect answer dsfa

8 0
2 years ago
Match each interaction type to the correct amount of potential energy.
Zigmanuir [339]

The type of energy which is present between the repulsion interaction is the highest potential energy.

<h3>What is potential energy?</h3>

Potential energy is the amount of energy that is possess by any body with respect to the electric charge posses in that and other factors also.

  • When molecules have a high attraction force then they have the low potential energy in them.
  • When molecules have a great repulsion between them then they have the great potential energy in them.
  • And molecules have the middle amount of potential energy then they have the balanced interaction.

Hence, molecules in which repulsion interaction is present will have highest potential energy.

To know more about potential energy, visit the below link:

brainly.com/question/14427111

#SPJ1

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2 years ago
This protein takes oxygen from hemoglobin in order to
never [62]

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i'm pretty sure it's 'transport oxygen from the lungs to tissues around the body'

4 0
3 years ago
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