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
Verizon [17]
3 years ago
6

Doy CORONITA a quien me ayude rapido que es un examen porfaaa

Chemistry
1 answer:
rodikova [14]3 years ago
8 0

Answer:

thank you for the points

You might be interested in
What part of an Atom undergoes change during radioactive decay
Aloiza [94]
It is clear that the core is subject to change
7 0
3 years ago
An endergonic reaction with a Δh and Δs can be changed into an exergonic reaction.
zheka24 [161]

Full question:

This question is incomplete, here it is completed:

An endergonic reaction with a ______ ∆H and a ______ ∆S can be changed into an exergonic reaction by decreasing the temperature.

Option A: negative, positive

Option B: negative, negative

Option C: positive, positive

Option D: positive, negative

Answer:

Option B: negative, negative

Explanation:

The change in free energy (ΔG) of a system for a constant-temperature process is

ΔG = ΔH - TΔS

free energy is the energy available to do work. Thus, if a particular reaction is accompanied by a release of usable energy (that is, <u>ΔG is negative</u><u>), it is said to be</u><u> exergonic</u>. On the other hand, if a reaction consumes energy (that is, <u>ΔG is positive</u><u>), it is said to be </u><u>endergonic</u>.

Looking at the equation, we can see that if ΔH is negative and ΔS is negative, then ΔG will be negative only when TΔS  is smaller in magnitude than ΔH. This condition is met when T is small.

ΔG = ΔH - TΔS

           -        -

This means that the reaction proceeds spontaneously at low temperatures. At high temperatures, the reverse reaction becomes spontaneous. An example of that would be the following reaction:

NH₃(g) + HCl(g) → NH₄Cl(s)

4 0
3 years ago
Tiny sacs in the lungs where gas exchange takes place are called ____?
SSSSS [86.1K]

Answer:

Alveoli

Explanation:

I hope this helps you.

8 0
3 years ago
Read 2 more answers
According to the law of conservation of energy, the energy released by the system must be transferred to and absorbed by the sur
Andrew [12]
True! 
 Energy released by system is absorbed by surroundings.
5 0
3 years ago
Give the word equation for the neutralization reaction of an acid and a base.
Grace [21]

Answer:Acid+Base--> salt+water

Explanation:the reaction between acids and bases is called neutralization and will always produce salt and water

7 0
3 years ago
Other questions:
  • A sealed can with an internal pressure of 721 mmHg at
    10·1 answer
  • What is a Cilla ? What does it look like ? (In drawing )
    6·1 answer
  • What is a system?
    11·1 answer
  • What's the break up of rock caused by mechanical or chemical processes
    10·1 answer
  • Is is true or false that ocean currents affect the climate I certain regions on earth​
    7·2 answers
  • Im so alone and i really need friends and maybe more pls dont delete my quiestion
    13·1 answer
  • The reaction 2KBr(s) →+ Br2(l) + 2K(s) is a <br>Decomposition reaction
    5·1 answer
  • Which of the following is NOT a factor that determines how much energy we need?
    11·2 answers
  • Write an importance of endothermic reactions​
    7·1 answer
  • Using the following equation
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!