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
Usimov [2.4K]
2 years ago
8

Could someone help pls ​

Chemistry
1 answer:
drek231 [11]2 years ago
4 0
<h3>Solution-:</h3>

  • option D
  • maintains a constant volume.

#<em>o</em><em>f</em><em>f</em><em>i</em><em>c</em><em>a</em><em>i</em><em>l</em><em> </em><em>Nazo</em>

<em>ll </em><em>Radhe</em><em> Radhe</em><em> ll</em>

You might be interested in
Question 2Classify the following organic structures:CH3OCH3CH2CH2CHCH2CH3CH3NHCH3CH3CH(OH)CH₂CH3
Naily [24]

Within the options, we have four organic compounds. Let's see what the skeletal structure of the compounds is in order to identify them better:

The first compound CH3OCH3 has two methyl groups linked by a carbon atom, this type of compound is called an Ether

The second compound has a double bond, it is badly written but it seems that is an alkene.

The third compound has two methyl groups linked by nitrogen atoms, therefore will be an amine.

The last compound has a hydroxyl group, therefore it is an alcohol

Answer:

CH3OCH3 Ether

CH2CH2CHCH2CH3 Alkene

CH3NHCH3 Amine

CH3CH(OH)CH₂CH3 Alcohol

3 0
1 year ago
What is the molar mass of NH4?
astraxan [27]

Answer:

NH4

Explanation:

7 0
2 years ago
Which of the following characteristics must be present for a substance to be called a mineral?
MArishka [77]
Minerals are solid, naturally occurring, inorganic compounds that possess an orderly internal structure and a regular chemical composition. Minerals should occur naturally. Hope this answers the question. Have a nice day. Feel free to ask more questions.
4 0
3 years ago
Read 2 more answers
PLEASES HELP ASAP
pentagon [3]
The 02 is a solid. I hope thus helped you :)
6 0
3 years ago
Read 2 more answers
Which statements are true?
schepotkina [342]

Explanation:

  • Evaporation is defined as a process in which liquid state of water is changing into vapor state.

So, we need to break the bonds of liquid substance in order to convert it into vapor state. And, energy is absorbed for breaking of bonds which means that evaporation is an endothermic process.

Hence, the statement evaporation of water is an exothermic process is false.

  • When a hydrocarbon reacts with oxygen and leads to the formation of carbon dioxide and water then this type of reaction is known as combustion reaction.

A combustion reaction will always release heat energy. Hence, combustion reaction is exothermic in nature.

  • When energy is transferred as heat from the surroundings to the system then it means energy is being absorbed by the system. And, absorption of heat is an endothermic process for which \Delta H is positive.
  • Whereas when energy is transferred from system to the surrounding then it means energy is released by the system which is an exothermic process.

Hence, for an exothermic process value of \Delta H is negative.

Thus, we can conclude that statements which are true are as follows.

  • A combustion reaction is exothermic.
  • When energy is transferred as heat from the system to the surroundings, \Delta H is negative.
  • For an endothermic reaction Deta H is positive.
5 0
3 years ago
Other questions:
  • When a cell is in a solution where the concentration of solute is the same in the cell as in the solution, the solution is calle
    8·1 answer
  • calculate the average atomic mass for neon if its abundance in nature is 90.5% neon-20, 0.3% neon-21, and 9.2% neon-22
    11·1 answer
  • The value of ΔH° for the reaction below is -126 kJ. The amount of heat that is released by the reaction of 25.0 g of Na2O2 with
    5·2 answers
  • According to de Broglie, which of these objects does not have a wavelength?
    9·1 answer
  • at a given tempature gas with a pressure of 150 kpa has volume of 0.8 l if the pressure decreases to 75kpa and the temperature r
    5·1 answer
  • which of these pieces of equipment would be the most appropriate for precisely measuring 29 mL of liquid? Explain your reasoning
    15·1 answer
  • Which is NOT an isotope of carbon?
    13·2 answers
  • I'm having trouble balancing these. Can you help me​
    13·1 answer
  • What are equation for the chemical change that produces water from two hydrogen molecules and one oxygen molecule. And the react
    7·1 answer
  • 16. A sequence of star colors frorn hottest to coolest is
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!