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
irga5000 [103]
3 years ago
7

PLEASE HELP WILL REWARD BRAINLIEST

Chemistry
2 answers:
riadik2000 [5.3K]3 years ago
7 0
The answer is the principal quantum number

Hope this helps
crimeas [40]3 years ago
4 0
Principal quantum hope you get an a
You might be interested in
In order to become stable, Potassium, K, will _______ and have a resulting charge of _____.
svlad2 [7]

Answer:

D

Explanation:

it doesn't matter how many protons k has all the answers have electron with the positive charge when is negative the question is trying to distract you D is the only one that would use the electrons sign correctly

4 0
2 years ago
In the Haber process for ammonia synthesis, K " 0.036 for N 2 (g) ! 3 H 2 (g) ∆ 2 NH 3 (g) at 500. K. If a 2.0-L reactor is char
lisabon 2012 [21]

Answer : The partial pressure of N_2,H_2\text{ and }NH_3 at equilibrium are, 1.133, 2.009, 0.574 bar respectively. The total pressure at equilibrium is, 3.716 bar

Solution :  Given,

Initial pressure of N_2 = 1.42 bar

Initial pressure of H_2 = 2.87 bar

K_p = 0.036

The given equilibrium reaction is,

                              N_2(g)+H_2(g)\rightleftharpoons 2NH_3(g)

Initially                   1.42      2.87             0

At equilibrium    (1.42-x)  (2.87-3x)     2x

The expression of K_p will be,

K_p=\frac{(p_{NH_3})^2}{(p_{N_2})(p_{H_2})^3}

Now put all the values of partial pressure, we get

0.036=\frac{(2x)^2}{(1.42-x)\times (2.87-3x)^3}

By solving the term x, we get

x=0.287\text{ and }3.889

From the values of 'x' we conclude that, x = 3.889 can not more than initial partial pressures. So, the value of 'x' which is equal to 3.889 is not consider.

Thus, the partial pressure of NH_3 at equilibrium = 2x = 2 × 0.287 = 0.574 bar

The partial pressure of N_2 at equilibrium = (1.42-x) = (1.42-0.287) = 1.133 bar

The partial pressure of H_2 at equilibrium = (2.87-3x) = [2.87-3(0.287)] = 2.009 bar

The total pressure at equilibrium = Partial pressure of N_2 + Partial pressure of H_2 + Partial pressure of NH_3

The total pressure at equilibrium = 1.133 + 2.009 + 0.574 = 3.716 bar

6 0
3 years ago
This is a test please help
GenaCL600 [577]

Answer:

remaining still during the night.

Explanation:

3 0
2 years ago
Choose ALL TRUE statements about calorimetry from the choices below:
Ostrovityanka [42]

Answer:

True statment

2) Styrofoam would make a good calorimeter

3) Insulating material would make a good calorimeter

Explanation:

The calorimeter is one which is insulated that is which will not absorb or let the heat to escape from it. the calorimeter is used to measure the heat change during a process so if it will allow to exchange heat with surrounding it will deviate the readings or observence.

Copper is a good conductor of heat so we cannot use it make a calorimeter.

Hence

1) Copper would make a good calorimeter : False

2) Styrofoam would make a good calorimeter: True

Styrofoam is a bad conductor or insulator so it can be and it is used for calorimeter.

3) Insulating material would make a good calorimeter : True

4) A good calorimeter should easily absorb heat : false

6 0
3 years ago
How does the sun impact the speed of the water cycle?
IceJOKER [234]

the sun makes it evaporate quicker if it is there for longer

8 0
3 years ago
Other questions:
  • In this Punnett square, what is the probability of the offspring being a heterozygous purple flower
    9·1 answer
  • Why must soft iron be used with an electromagnet?
    15·2 answers
  • A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M 1.0 M nickel(II) ion solution and another elect
    9·1 answer
  • Controls are defined as____
    14·1 answer
  • Calculate the freezing point of a solution 1.25 g benzene (C6H6) in 125 g of chloroform (CHCl3).
    15·1 answer
  • 1 Which best defines concentration?A ratio that describes the amount of solute divided by the amount of solvent or solutionB rat
    11·1 answer
  • I need help please, will mark you the brainliest.
    15·1 answer
  • Write balanced equations for each of the processes, choosing from the following substances as reactants: BaCl2 O2 H2SO4 HNO3 C2H
    5·1 answer
  • What chemicals must be cycled through a Martian environment in order for the planet to be habitable for life? Describe how scien
    12·1 answer
  • I just want to know the answer
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!