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
Stells [14]
3 years ago
10

Which one is the catalyst?

Chemistry
1 answer:
yan [13]3 years ago
5 0

Answer:

the catalyst is the two gray dots

You might be interested in
Determine the equilibrium constant, Keq, at 25°C for the reaction
adelina 88 [10]

Explanation:

The given chemical reaction is:

2Br^- (aq) + I_2(s)  Br_2(l) + 2I^- (aq)

E^ocell=oxidation potential of anode + reduction potential of cathode\\

The relation between Eo cell and Keq is shown below:

deltaG=-RTlnK_e_q\\delta=-nFE^o cell\\=>nFE^o cell=RTlnK_e_q\\lnK_e_q=\frac{nF}{RT} E^o cell

The value of Eo cell is:

Br- undergoes oxidation and I2 undergoes reduction.

Reduction takes place at cathode.

Oxidation takes place at anode.

Hence,

E^ocell= (-1.07+0.53)V\\=-0.54V

F=96485 C/mol

n=2 mol

R=8.314 J.K-1.mol-1

T=298K

Substitute all these values in the above formula:

ln K_e_q=\frac{2mol* 96485 C/mol}{8.314 J.K^-^1.mol^-^1x298K} \\\\lnK_e_q=77.8\\K_e_q=e^7^7^.^8\\=>K_e_q=6.13x10^3^3

Answer:

Keq=6.13x10^33

3 0
3 years ago
What is the maximum number of electrons found in any energy level of the known elements? (Refer to the periodic table.) 112 32 8
Makovka662 [10]

The answer is 32 electrons.

7 0
3 years ago
Read 2 more answers
D) does not dissociate in solution.
natima [27]

Answer:

According to the proton theory of acids and bases by J. Brønsted and T. Lowry, the  acid is<u> proton donor</u>.

Explanation:

According to the Bronsted lowry concept an acid is substance that gives protons or hydrogen ion while,

Base is substance that accept hydrogen ion or proton.

Consider the following example:

NH₃ + HCl  →  NH₄⁺ + Cl⁻

In this example HCl is Bronsted lowry acid it gives H⁺ while ammonia is Bronsted lowry base because it accept H⁺.

This also gives the concept of conjugate acid and base. In given example Cl⁻ is conjugate base of HCl while NH₄⁺ is conjugate acid of ammonia.

4 0
3 years ago
How many moles are there in 32.4 grams of Na
Natalija [7]
Divide that my the molar mass which is 23 so 1.4087 g
8 0
3 years ago
Which statement correctly describes measuring with a graduated cylinder?​
snow_tiger [21]

Answer:

what are the options because a graduated cylinder is a science mixing cylinder is a common piece of laboratory equipment used to measure the volume of a liquid

Explanation:

6 0
3 years ago
Other questions:
  • What liquids contain less than 80% percent water?
    7·2 answers
  • What state of matter is fire?
    8·2 answers
  • 1. The
    8·1 answer
  • Green plants use light from the sun to drive photosynthesis, a chemical reaction in which liquid water and carbon dioxide gas fo
    6·1 answer
  • Divide 98.66 grams by 10.3 mL
    15·1 answer
  • What solutions do we need to work on to get accurate results?<br> A) concentrated<br> B) diluted
    12·1 answer
  • Which statement is true regarding a catalyst?
    8·1 answer
  • A metal atom and a non-metal atom bond together. What type of bond do they form?
    8·1 answer
  • Explain why in this crossing all of the hedgehog offspring are brown even though they all carry the white gene?
    10·2 answers
  • A combination of salt and sugar grains is best classified as a mixture because...
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!