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
torisob [31]
3 years ago
9

HURRY PLEASE

Chemistry
1 answer:
densk [106]3 years ago
7 0

Answer:

C

Explanation:

on edg

You might be interested in
Calculate the standard cell potential of the following cell at 25°C. Sn(s) | Sn2+(aq) || Cu2+(aq) | Cu(s).
Semmy [17]

Answer:

0.48 V

Explanation:

Usually in the cell notation, the left side shows oxidation. So,

Oxidation half reaction:

Sn_{(s)}\rightarrow Sn^{2+}_{(aq)}+2e^-    E^o_{ox}=-E^o_{red}=-(-0.14\ V)=0.14\ V

Reduction half reaction:

Cu^{2+}_{(aq)}+2e^-\rightarrow Cu_{(s)}    E^o_{red}=0.34\ V

E^o_{cell}=E^o_{ox}+E^o_{red}= (0.14+0.34)\ V=0.48\ V

4 0
2 years ago
1.25 moles of NOCl were placed in a 2.50 L reaction chamber at 427ºC. After equilibrium was reached, 1.10 moles of NOCl remained
kenny6666 [7]

Answer:

5.6 × 10^4

this is ur answer hope it helps u

5 0
3 years ago
For work to be done on an object:
Mazyrski [523]

Answer:

The object has to move a distance when a force is applied to it

Explanation:

For work to be done on a body the force applied must move the body through a particular distance.

  Work done  = Force x distance  

If no distance is moved by the force, no work is done.

Also, the angle between the force and the distance must be 0 to do the maximum work on the body.

8 0
3 years ago
The student plans to conduct a spectrophotometric analysis to determine the concentration of Cu2+(aq) in a solution. The solutio
mestny [16]

Answer:

The wavelength the student should use is 700 nm.

Explanation:

Attached below you can find the diagram I found for this question elsewhere.

Because the idea is to minimize the interference of the Co⁺²(aq) species, we should <u>choose a wavelength in which its absorbance is minimum</u>.

At 400 nm Co⁺²(aq) shows no absorbance, however neither does Cu⁺²(aq). While at 700 nm Co⁺²(aq) shows no absorbance and Cu⁺²(aq) does.

7 0
2 years ago
How do crickets make sound from your their leg right?
Reptile [31]
The bottom of a cricket wing is covered with teeth-like ridges that make<span> it rough. The upper surface of the wing is like a scraper. When </span>crickets<span> rub the upper and lower parts of their wings together, they create a chirping</span>sound<span> called “stridulating."</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • NO3 + 12 + 103 + NO2<br> What is being oxidized?
    10·2 answers
  • Which is an example of an element? A) salt (NaCl) B) water (H20) C) silver (Ag) D) electron (e-)
    6·2 answers
  • Which statement explains why the bonds between nonmetals tend to be covalent? The bonds are found to be nondirectional. They hav
    9·2 answers
  • PLEASE HELP ASAP
    13·1 answer
  • Convert 5.626 1 to cl.
    7·1 answer
  • Write one scientific question about the organism in the photo
    12·2 answers
  • Atoms of the most reactive elements tend to have
    12·2 answers
  • The main buffering agents in human blood are h2co3 and hco3. Explain how this buffering system will be able to maintain blood pH
    9·1 answer
  • An atom has 24 protons, 22 electrons, and 28 neutrons. What is the IONIC CHARGE of the atom? *
    15·1 answer
  • If you burn a citronella candle near your picnic will it keep mosquitoes away
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!