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Ira Lisetskai [31]
3 years ago
10

Which option(s) correctly shows an anion? Select all that apply. ​

Chemistry
1 answer:
nata0808 [166]3 years ago
7 0

Answer:

x

Explanation:

becaue neutron equal to mass num -atomic num

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How dose the decay of the biomass contribute to the nitrogen in earth
lys-0071 [83]
When a biomass is decaying, decomposers are eating these and use it as their food. As a byproduct from these organisms, they release nitrogen to the earth in the form of nitrates or nitrates increasing the amount of nitrogen present in the Earth. Hope this helps.
7 0
3 years ago
(b) Why is the heat of sublimation ( ΔH fus ) of a substance greater than its ( ΔHvap ) ?
Ivanshal [37]

This is because solids have less energy than liquids do, hence it takes more energy to excite a solid into its gaseous phase than it does a liquid.

When opposed to merely reducing their separation, from solid to liquid, the energy needed to totally separate the molecules as they move from liquid to gas is substantially higher. The latent heat of vaporization is therefore bigger than the latent heat of fusion for this reason.

<h3>What is heat of sublimation?</h3>

The amount of energy required to change one mole of a substance from its solid to its gaseous state under particular conditions—typically the standard ones—is known as the enthalpy of sublimation or heat of sublimation (STP). A solid's worth is based on its cohesive energy.

<h3>What is heat of vaporization?</h3>

The term "enthalpy of vaporization," which is often referred to as "heat of vaporization" or "heat of evaporation," refers to the amount of energy that must be applied to a liquid substance in order to cause a part of that substance to transform into a gas. Vaporization's enthalpy varies with the pressure at which the transition takes place.

Learn more about heat of sublimation: brainly.com/question/13200793

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The correct question is:

Why heat of the sublimation of a substance is greater than the heat of vaporization?

7 0
2 years ago
True or false water readily dissolves most polar compounds
morpeh [17]
The answer is false, I hope this helps.
3 0
4 years ago
Read 2 more answers
Scientists often work on projects for a long time and fail to see sources of error in their research. Which process allows an ou
prohojiy [21]

Answer:

The correct approach is Option B (Peer Review).

Explanation:

  • Rather made reference to someone as a scientific peer-review, it encourages the specialist who has not been essential to the study team to analyze the study objectively and pointed out everyone's mistakes. It serves as major self-regulation for scholars and aims to make the publishing process somewhat credible. Hence, the solution to this issue is Peer Examination.
  • Funding organizations rarely have the capabilities to recognize out mistakes, whereas definitive analysis is a method of study that helps to make a definitive statement. The gathering of data is simply a process of scientific study.

Other approaches do not apply to the example mentioned. Although the one mentioned is right.

4 0
4 years ago
Read 2 more answers
c) What is the pH of the buffer system in part a when 0.030 moles of strong acid are added (without a change in volume)
pishuonlain [190]

Answer:

remain the same

Explanation:

The pH of the buffer system remain the same when 0.030 moles of strong acid are added because buffer system has the property to resist any change in the pH  when acid or base is added to the solution. In buffer system, one molecule is responsible for neutralizing the pH of the solution by giving H+ or OH-.This molecule is known as buffer agent. If more base is added, the molecule provide H+ and when more acid is added to the solution, then the molecule add OH- to the solution.

7 0
4 years ago
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