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IRISSAK [1]
3 years ago
13

You want to experiment to see how long it takes for water, hydrogen peroxide, and vinegar to boil. You decide heat up 10 mL of w

ater, 20 mL of hydrogen peroxide, and 30 mL of vinegar. Would this experiment be valid? Why or why not?
A) The experiment is invalid because more than one variable in the experiment is changed.

B) The experiment is valid because all necessary variables are controlled appropriately.

C) The experiment is invalid because it is unsafe to heat up hydrogen peroxide.
Chemistry
1 answer:
aleksley [76]3 years ago
6 0

Answer:

B

Explanation:

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Remember that each amino acid change is caused by a single nucleotide substitution. Use this information to further limit the po
amid [387]

Answer:

The answer to your question is: first two.

Explanation:

Codons that code for Arginine   AGA and AGG

Then,

                  AGA AGG CGA CGC  CGG  CGU

The first two codons will code for Arginine

8 0
3 years ago
What is the energy of a photon emitted with a wavelength of 448 nm?
DIA [1.3K]

Answer:

i think D is correct

Explanation:

so think about it

yourself

4 0
3 years ago
Single and double replacement
MrMuchimi

Answer:

Explanation:

A single replacement or single displacement reaction is a reaction in which one substance replaces another.

            A  +   BC →   AC + B

The replacement of an ion in solution by a metal higher in the activity series is a special example of this reaction type.

The relative positions of the elements in the activity series provides the driving force for single displacement reactions.

A double replacement reaction is one in which there is an actual exchange of partners between reacting species. This reaction is more common between ionic substances;

              AB + CD → AC + BD

Such reactions are usually driven by;

  • formation of precipitation
  • formation of water and a gaseous product
3 0
3 years ago
Cathode rays were shown to be a stream of _____. protons electrons neutrons quarks
Murljashka [212]

It's B) electrons, is the right answer

7 0
3 years ago
The ratio of the specific heat of aluminum to the specific heat of iron is 2:1. How much energy must be transferred to the alumi
erastova [34]

Given what we know about ratios, we can confirm that in comparison to the iron pan, the aluminum pan will receive twice as much heat.

<h3>Why would the aluminum pan receive double the heat?</h3>
  • This has to do with the ratio being presented.
  • A ratio of 2:1 means that for every unit of heat to the iron, the aluminum receives 2.
  • In other words, the aluminum pan receives twice as much heat when compared to the iron pan.

Therefore, we can confirm that because the ratio of heat to the aluminum in comparison to the iron pan is 2:1, this means that for every 1 unit of heat to the iron pan, the aluminum pan will receive 2. This results in double the total heat received by the aluminum pan.

To learn more about ratios visit:

brainly.com/question/1504221?referrer=searchResults

3 0
2 years ago
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