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
AfilCa [17]
3 years ago
11

design an experiment to test substances X, Y, and Z to determine which one is a catalyst for the reaction.

Biology
1 answer:
Fynjy0 [20]3 years ago
8 0

Answer:

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.

You might be interested in
In an experiment, what is the factor that is tested? control specimen hypothesis variable
e-lub [12.9K]

The factor being tested is the variable. There are two types of variables, independent and dependent. The independent variable is the factor being changed by the scientist or the person controlling the experiment. The dependent variable is the thing that gets changed due to the changing of the independent variable. The dependent variable cannot be changed physically by the person doing the experiment.

6 0
3 years ago
Can dogs identify colors?" is an example of a scientific question. "Are dogs better pets than cats?" is not. Use complete senten
sp2606 [1]
The difference between these two questions is that one has a scientific answer for that question. The one that says, " Can dogs identify colors?" is scientific because it can be answered scientifically but the one that says, "Are dogs better pets than cats?" cannot be answered scientifically. 
~Hope that this makes since and helps
5 0
3 years ago
Read 2 more answers
A group of people rented a fishing boat for the day and traveled far from land. Later they
Genrish500 [490]

Answer:

C. magnetic force

...........

4 0
3 years ago
Explain nitrogen fixation
AnnZ [28]
Nitrogen fixation is a process in which nitrogen (N2) in the Earth's atmosphere is converted into ammonia (NH3). Atmospheric nitrogen or molecular dinitrogen (N2) is relatively inert: it does not easily react with other chemicals to form new compounds.
3 0
3 years ago
Part A: A scientist examines a fruit fly gene involved with the regulation of body development. A section of the DNA sequence fo
Leokris [45]

Answer:

Part A: Thr-Leu-Val

Part B: ACC-UUG-GUU

Explanation:

When you transcribe a DNA sequence to mRNA, you need to remember that in RNA there is no Thymine (T), instead it has Uracil (U). So the base pairings would be like this compared to DNA base pairing:

DNA                RNA

A-T                  A-U

T-A                  T-A

C-G                 G-C

G-C                 C-G

Given the sequence the transcription will be as follows:

DNA :   TGG - AAC - CAA  

mRNA: ACC - UUG - GUU

Next, to translate it into amino acids, you will use the chart. Now amino acids pair in codons (3 base pairs at a time).  Let's take the first codon in your sequence:

ACC

1st  2nd   3rd

 A     C       C

Using the column on the left, find the row that matches it, so in this case A.

At the very top, there is another row of letters, looking at the row of A only, look for the column of the second base which is C.

Lastly, look at the right most column and find the letter that matches the third base within the box where A and C intersect. In this case, C is your third base.

The amino acid where all three intersect is your first amino acid which is Thr.

Just do this for the next codons and you will come up with the answer.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Coals ,oils and gas are examples of
    6·1 answer
  • The bacterium _____ is commonly found in deli meats, hot dogs, soft cheeses, raw meat, and unpasteurized milk.
    11·2 answers
  • The major difference between prokaryotic and eukaryotic cells is that
    11·2 answers
  • About how much of an organism is water <br> a) 25% <br> b)50% <br> c)70% <br> d)5%
    7·2 answers
  • Which element has similar properties to aluminum​
    8·1 answer
  • Aminoglycosides: Select one: a. attach to the 30S ribosomal subunit and disrupt protein synthesis. b. are metabolic analogs of P
    7·1 answer
  • Please help me please
    8·1 answer
  • – Explain what happens to the incoming solar radiation after it is reflected off the surface of the earth (include what happens
    7·1 answer
  • What was the invasive species on Christmas Island that changed the ecosystem?
    7·2 answers
  • Photosynthesis demonstrates the 1st Law of Thermodynamics because during this process ______________ energy is converted to ____
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!