answer.
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
Monica [59]
2 years ago
8

A student designs an experiment to test substances X, Y, and Z, to determine which one is a catalyst for the reaction: A + B ® C

. Only one of the unknown substances is a catalyst, and the others are nonreactive with A, B, or C. When 10 mL of A is added to 10 mL of B, the reaction takes twenty seconds. Bubbles form when the product C is created. The student prepares three test tubes, each containing both reactants A and B. She adds unknowns X, Y, and Z to test tubes 1, 2, and 3, respectively. She then times the reaction in each test tube from the point when the unknown is added until bubbling stops. How can the student identify the catalyst? The test tube that stops bubbling first contains the catalyst. The test tube that produces the most bubbles contains the catalyst. The test tube that bubbles the longest contains the catalyst. The test tube that does not bubble contains the catalyst.
Biology
1 answer:
valentina_108 [34]2 years ago
4 0

Answer:

Explanation:

The test tube that first stops in bubbling or the production of a gas is the tube that contains the catalyst since the reaction ended faster than the others. A catalyst is known to speed up a reaction so it must the situation aforementioned is the answer.

You might be interested in
When Hurricane Marilyn struck the Caribbean islands in 1995, a group of about 15 green iguanas floated on storm debris from the
zzz [600]

A. Develop new traits.

5 0
2 years ago
What kind of membrane protein is found entirely outside the bilayer on either the extracellular or cytoplasmic surface? these pr
N76 [4]
They are peripheral proteins
8 0
2 years ago
Describe Henrietta Leavitt's discovery, and explain why it was so important in the society in which she lived.
spayn [35]
<h2>Henrietta Discovery </h2>

Henrietta Swan Leavitt discovered cepheids in 1908 during the investigation of different stars in the clouds. She published it by working more on it in 1912 and died in December 1921. This discovery was so important in the society in which she lived because the cosmologist of America was known for this discovery of Cepheids which is a relationship between period, luminosity and quivering stars which changes in light.


8 0
2 years ago
Read 2 more answers
Name the three molecules that are illustrated in Model 1.
FromTheMoon [43]

Answer:

Pentanol, glucose and fatty acid.

Explanation:

Pentanol, glucose and fatty acid are the three molecules which are present in  the given model number 1. In the model, there are three different molecular diagrams for each molecule. The first one is ball and stick model, the second one is Lewis structure and the third one is line drawing method. All diagrams for a same molecule is totally different from another.

3 0
2 years ago
Clusters of gray matter that contain neuron cell bodies and lie within masses of white matter are the
Oxana [17]

Answer:

Cerebral Nuclei.

Explanation:

Cerebral nuclei refers to one of three components of the cerebrum. It is a composite structure of the end-brain defined on the basis of origin from the ventricular ridge of the embryonic Encephalon. It is a lusters of gray matter that contain neuron cell bodies and lie within masses of white matter.

5 0
2 years ago
Other questions:
  • Biotite mica and muscovite mica have different chemical compositions. Compared to the magma from which biotite mica forms, the m
    11·1 answer
  • Which of the following is not a function of protein?
    6·2 answers
  • The slide image shows epithelium tissue found in the bladder. What is the function of the tissue indicated by the arrow?
    7·1 answer
  • An example of mitosis at work is a leaf
    10·1 answer
  • A researcher is designing a laboratory experiment to determine whether the inorganic substance A affects the rate of a reaction
    8·2 answers
  • While collecting specimens, a marine biologist finds a sessile Cnidarian. The medusas that bud from it swim by contracting a rin
    15·1 answer
  • As the human population grows, some minerals in everyday products could become scarce. Which of the following is the best way to
    9·2 answers
  • Each of the following statements concerning hair is true except
    15·1 answer
  • The diagram below shows three cubes. Which has the biggest surface area to volume ratio? 100 points if you answer
    13·1 answer
  • ______pressure gives nonwoody plants their shape.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!