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
Mumz [18]
3 years ago
8

Calculate the percent covalent character of a chemical bond between oxygen and beryllium.

Chemistry
1 answer:
dezoksy [38]3 years ago
8 0

Beryllium Oxide has a molecular formula Be-O

% covalent character in Be-O = 100 - % ionic character in Be-O

Now,

% ionic character = {1 - exp[(-0.25)(E(Be)-E(O))²]}*100

where,

E(Be) and E(O) are the electronegativity values of Be and O

Based on the Paulings scale:-

E(Be) = 1.57

E(O) = 3.44

% ionic = {1 - exp[(-0.25)(1.57-3.44)²]}*100 = 58.28%

Therefore, % covalent = 100 -58.28 = 41.72%

Ans: b) 41 percent

You might be interested in
Tanks of compressed gas must be kept away from heat sources. If a compressed–gas tank is heated too much, it may explode and cau
scoundrel [369]
If it is heated while it is being compressed or held inside a container as such, the pressure build up while in the container  and the pressure can become so much that the container will burst.
3 0
3 years ago
Read 2 more answers
Describe the chemical reaction based on the chemical equation below also whether the equation is balanced
Crank

Answer:

Its not balanced

4NH₃ + 7O₂ ⇒ 4NO + 6H₂O

3 0
3 years ago
PLEASE HELP GUYS PLEASE!!!! I will LOVE WHOEVER HELP<br> ME FOREVER
Vladimir79 [104]

Answer:

B. It is highly flammable.

Explanation:

Chemical properties deal with how the substance will behave when brought into contact with other substances, and usually have to do with it undergoing some kind of reaction. Flammability is a chemical property.

Density, melting point, and color are all considered physical properties.

3 0
2 years ago
Read 2 more answers
I don't know what to do about this now. I like her a lot; I don't want to just give up on this because I see relationship potent
Umnica [9.8K]

Answer:

Awe ...

Explanation:

4 0
2 years ago
Read 2 more answers
Nitric oxide, an important pollutant in air, is formed from the elements nitrogen and oxygen at high temperatures, such as those
Tanya [424]

Answer:

Q is 0.5 and K is 0.01, therefore K is less than Q.

the system will proceed in the reverse direction, thereby converting products into reactants. converting Nitric oxide to form oxygen and nitrogen.

Explanation:

Given,

N2 (g) + O2 (g) « 2 NO (g)

K = 0.01

heated temperature = 2000 ⁰C

N2 moles =0.4

O2 moles =0.1

2NO moles = 0.08

Volume of container = 1L

Q is the reaction quotient  of the equilibrium equation. it is use to determined which direction the system will move to by comparing it with the K value.

Q can be calculated by multiplication of mass of reactant divide by mass of product

Q =\frac{ [N2] *[O2}{2NO}

the mass of the chemicals are in mole, there is need to convert them to moles/litre

therefore,

for N₂ : 0.4 mole per 1L container = 0.4 mol/L = 0.4M

for O₂ : 0.1 mole per 1L container = 0.1 mol/L = 0.1M

for 2NO : 0.08mole per 1L container = 0.08 mol/L = 0.08M

Q =\frac{ [N2] *[O2}{2NO} = (0.4*0.1)/0.08 = 0.5

finally, we are going to compare the value of Q with K

Note that:

if K>Q , the reaction will proceed forward, converting reactants into product.

if K<Q , the reaction will proceed backward, converting products into reactants.

if K=Q , the system of reaction is already in equilibrium.

since, Q is 0.5 and K is 0.01, therefore K is less than Q.

the system will proceed in the reverse direction, thereby converting products into reactants. converting Nitric oxide to form oxygen and nitrogen.

7 0
3 years ago
Other questions:
  • A decrease in velocity over time <br> A velocity <br> B time<br> C acceleration<br> D deceleration
    14·2 answers
  • What is the oxidation number of iodine in KIO4?(1) +1 (3) +7(2) -1 (4) - 7
    6·1 answer
  • What distance does electromagnetic radiation travel in 33 fs?
    10·1 answer
  • how do whales bats and dolphins use echolocation? to scare away predators, to orient themselves and to find food, to attract mal
    10·2 answers
  • 3. What does this tell you about the relative tonicity (osmotic pressure) between the contents of the tubing and the solution in
    10·1 answer
  • How does brock answer the charge that euthanasianis the deliberating killing of na innocent person?
    12·1 answer
  • Give me lil reasoning so I know your not lying for points
    8·1 answer
  • Given the following equation: 8 Fe + S 8  8 FeS
    15·1 answer
  • How many moles at of a gas will occupy 2.5 L at STP?
    13·1 answer
  • AYUDA<br> DOY PUNTOS :(<br> LKDSAFLÑDKMDFÑVDV
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!