1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
gayaneshka [121]
3 years ago
15

Which statement best describes the amount of catalyst that remains at the end of a reaction?

Chemistry
2 answers:
Ivenika [448]3 years ago
7 0
I believe the correct answer is C. The amount of catalyst is the same at the end as at the beginning of the reaction. Catalysts can't be consumed by the reaction thus is not D.
gizmo_the_mogwai [7]3 years ago
6 0

Answer is: C) The amount of catalyst is the same at the end as at the beginning of the reaction.

A catalyst is a chemical species that is present at the beginning of a reaction and reappears at the end.  

An intermediate forms during the reaction and disappears before the end.

Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst.  

Reactions occur faster with a catalyst because they require less activation energy.

You might be interested in
A mixture of compounds containing diethylamine, phenol, ammonia, and acetic acid is separated using liquid-liquid extraction as
umka2103 [35]

Answer:

I would expect to extract the acetic acid.

Explanation:

In the first step, since we are adding a concentrated acid,<u> it will react with the bases present in the mixture (diethylamine and ammonia) </u><u>forming salts</u><u>, </u><u>which are soluble in water</u>. Therefore, after draining the aqueous layer, we will have phenol and acetic acid left in the organic layer.

In the second step, we are adding a diluted base, so it will react with a strong acid. This compound is acetic acid, and its salt will be present in the aqueous layer. Phenol will be left on the organic layer.

7 0
3 years ago
Scientists utilize models for a variety of different purposes, but each type of scientific model has limitations. What might be
Nezavi [6.7K]
They are based in current knowledge 

6 0
3 years ago
The lungs are covered with a thin layer called ________​
Naddika [18.5K]

interstitium

#keeponlearning

5 0
3 years ago
Read 2 more answers
If someone takes a material that looks pure, and then they do something to it that results
Sati [7]

Answer:

The determination of the nature of the combination of the two separate materials in the original material that looks pure is based on the characteristic of the change process they undergo to become two separate materials.

Therefore, they can know if they initially had a mixture or a compound by the following steps;

1) If the two separated materials can be easily remixed to form the original material, then they likely have a mixture of the two separate materials

2) If the process that results in the formation of the two separate materials, involves the absorption or evolves heat or other forms of energy, then the original substance was a compound

3) If the two newly formed materials is seen to be a permanent change, then the original material was a compound

Explanation:

7 0
3 years ago
Someone pls help me I will make you brain
mariarad [96]

Answer:

B

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Reaction with lithium and aluminum chloride formula?
    11·2 answers
  • Claire is investigating potential and kinetic energy using a large ball. For her investigation, Claire will stand at the top of
    5·1 answer
  • In a chemical reaction sodium and chlorine react to form sodium chloride. Which term names the sodium?
    13·2 answers
  • Urea (CH4N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with carbon dioxide as follows: 2N
    8·1 answer
  • A stock solution is made by dissolving 66.05 g of (NH4)2SO4 in enough water to make 250 mL of solution. A 10.0 mL sample of this
    7·2 answers
  • assume that a water balloon has the same number of water molecules as a helium balloon has helium atoms. If the mass of the wate
    11·1 answer
  • Three chemical reactions of ethane?
    9·1 answer
  • An experiment shows that 113 mL gas sample at pressure of 721mmHg changed to 901 mmHg.
    8·1 answer
  • What tranports oxygen into the cells?​
    15·2 answers
  • Identify oxidation.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!