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
Trava [24]
4 years ago
8

Which electron configuration represents an

Chemistry
1 answer:
Natasha_Volkova [10]4 years ago
5 0
The answer is (3) 2-8-8-1
You might be interested in
Seth used this model to show how water vapor becomes a liquid in the water cycle. Which part of the water cycle is he modeling?
IRISSAK [1]

Answer: He is modeling the condensation process in the water cycle.

6 0
3 years ago
Which is the correct net ionic equation for the reaction of aqueous ammonia with nitric acid? Which is the correct net ionic equ
rewona [7]

Answer:

The correct answer is

e. NH3(aq) + H+(aq) --> NH4+(aq)

Explanation:

To solve this, we write out the indidual ionization reation for aqueous ammonia and nitric acid thus

For aqueous ammonia we have

NH₃(aq) + H₂O(l) ↔ NH₄⁺(aq) + OH⁻(aq)

Aqueous ammonia is a weak base and therefore undergoes partial ionization hence the reversible reaction sign

As the level of ionization will not be more than 5% OH⁻ cannot represebt the weak base

For nitric acid we have

HNO₃(aq) → H⁺(aq) + NO₃⁻(aq)

a strong acid like nitric acid undergoes conplete ionization in the solution

The total equation is NH₃(aq) + HNO₃(aq) → NH₄NO₃(aq)

The sum of the ionic equation is

NH₃(aq) + H⁺(aq) + NO₃⁻(aq) → NH₄⁺(aq) + NO₃⁻(aq)

The ionic equation is

NH₃(aq) + H⁺(aq) →  NH₄⁺(aq)

5 0
4 years ago
Read 2 more answers
In one compound of nitrogen and oxygen, 0.615 grams of nitrogen combines with 0.703 grams of oxygen. In another 1.27 grams of ni
Orlov [11]

Answer:

Answer in explanation

Explanation:

In the first case, we divide each of the masses by the respective atomic masses:

N =0.615/14 = 0.043928571428571

O = 0.703/16 = 0.0439375

It can be seen here that the values are similar, hence the formula is NO

now let us look at the second data set:

N = 1.27/14 = 0.090714285714286

O = 2.9/16 = 0.18125

We now divide by the smallest

N = 090714285714286/090714285714286 = 1

O = 0.18125/090714285714286 = 2

The formula here is thus NO2.

It can be seen that there are different oxides of nitrogen here which clearly indicates the law of multiple proportion.

4 0
4 years ago
I need help ASAP please
Andrej [43]

525L

Explanation:

Given parameters:

Volume to Temperature ratio = 1.75

Temperature = 300k

Unknown:

Volume of the gas = ?

Solution:

We must carefully analyze and comprehend the detailed description of this experiment:

 It was suggest that the gas could expand or shrink without changing the pressure of the gas inside.

This implies that the pressure in the vessel is constant

This similar to the postulate of the Charles's law: The volume of a fixed mass of gas is directly proportional to the absolute temperature if the pressure is constant.

 Mathematically;

                 \frac{V1}{T1}  = \frac{V2}{T2}

V and T are the volume and temperature

 Now we can solve the given problem;

           \frac{V}{T}  = 1.75

Since temperature is given as 300K

 Input the variables:

           \frac{V}{300}  =  1.75

          V = 1.75 x 300 = 525L

learn more:

Boyle's law brainly.com/question/8928288

#learnwithBrainly

3 0
3 years ago
Magnetism easily separates what mixture?
White raven [17]

Answer:

im pretty sure its b. sand and iron

ik that magnetism easily separates iron

4 0
3 years ago
Read 2 more answers
Other questions:
  • A student fills her burette with NaOH to the 2.5 mL mark. She titrated her sample of the NaOH until she reaches the endpoint (i.
    6·1 answer
  • Which of the following is more electronegative:
    10·1 answer
  • 0.517 = what’s this in scientific notation
    12·2 answers
  • What might be a long term benefit for the nation from space exploration. A. Taxes will be slower. B. More people will be interes
    5·1 answer
  • At 25oC, three moles of a gas occupy a volume of 4.0 L at 1.9 kPa. If the volume increases to 12.0 L, what will the new pressure
    5·2 answers
  • __is oxygen less respiration aided by chemical reaction to transfer energy from reactant glucose to the cell​
    9·1 answer
  • How much water must be added to 40.0 g of CaCl2 to produce a solution that is 35.0 wt% CaCl2?
    8·1 answer
  • Balance the following equations:<br> 1. _' Pb(OH)2 + HCI<br> H,0 + __PbCI
    6·1 answer
  • % Yield (10 points): 8. Using the reaction above: a. Calculate the theoretical yield of the product if you started with 5 grams
    6·1 answer
  • Several balls and sticks glued together to represent a molecule
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!