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valina [46]
3 years ago
6

Can somebody please help me

Chemistry
1 answer:
kramer3 years ago
4 0

Answer:

a) carboxylic acid

b) amine

c) ester

d) aldehyde

e) alkene

f) ketone

Explanation:

Most of them are straight forward.

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Why is photosynthesis an example of chemical change, and why is it classified as endothermic?
Alexeev081 [22]

Answer:

It is an example of chemical reaction because carbon dioxide and water are converted into glucose and oxygen. If that makes any sense.  and it is classified as endothermic because it requires the input of energy in the form of solar energy.

Explanation:

3 0
3 years ago
Which of the following gas samples would contain the same amount of gas as 200 mL of helium, He(g), at 25° C and 1 atm?
monitta

Answer:

200\; \rm mL of neon \rm Ne\, (g) at 25^{\circ} \rm C and 1\; \rm atm (the second choice) would contain an equal number of gas particles as 200\; \rm mL\! of \rm He \, (g) at 25^{\circ} \rm C\! and 1\; \rm atm\! (assuming that all four gas samples behave like ideal gases.)

Explanation:

By Avogadro's Law, if the temperature and pressure of two ideal gases is the same, the number of gas particles in each gas would be proportional to the volume of that gas.

All four gas samples in this question share the same temperature and pressure. Hence, if all these gases are ideal gases, the number of gas particles in each sample would be proportional to the volume of that sample. Two of these samples would contain the same number of gas particles if and only if the volume of the two samples is equal to one another.

The second choice, 200\; \rm mL of neon \rm Ne\, (g) at 25^{\circ} \rm C and 1\; \rm atm, is the only choice where the volume of the sample is also 200\; \rm mL \!. Hence, that choice would be the only one with as many gas particles as 200\; \rm mL\! of \rm He \, (g) at 25^{\circ} \rm C\! and 1\; \rm atm\!.

7 0
2 years ago
If 72^x=26, what is the value of x?
stepan [7]
X equals <span>2.76923076923</span>
7 0
3 years ago
What is normality in chemistry?​
Advocard [28]

Answer:

a measure of concentration equal to the gram equivalent weight per liter of solution.

Explanation:

Gram equivalent weight is the measure of the reactive capacity of a molecule. The solute's role in the reaction determines the solution's normality. Normality is also known as the equivalent concentration of a solution.

hope it helped

7 0
3 years ago
Fill in the blank with the correct response.
Ganezh [65]

Surveys are the data collection tool and research methods. The questionnaire survey tool is used to collect the data based on questions.

<h3>What are questionnaires?</h3>

Questionnaires are the tool used for the research and the data collection for the analysis, investigation, and conclusion. It is one of the data collection tools that comprises questions and prompts.

Questionnaires are the part of surveys that gathers information on the topic of the research and is easy to analyze and cost-effective. It is a valuable tool that collects data from a large number of participants.

Therefore, the correct blank is the <u>questionnaire</u>.

Learn more about the questionnaire here:

brainly.com/question/20335282

#SPJ1

3 0
1 year ago
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