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
elena55 [62]
3 years ago
12

Which of the following statements regarding bond energies is FALSE

Chemistry
1 answer:
Pepsi [2]3 years ago
7 0

Answer:

The correct answer is A all chemical bonds are hard to break

Explanation:

The minimum amount of energy that is required to break a chemical bond is known as bond energy.

   Different amount of energy is required to break different bonds. For example High amount of energy is required to break covalent bond whereas a low amount of energy is required to break non covalent bonds such as hydrogen bond, hydrophobic interaction,van der waal interaction etc.

You might be interested in
What is the weight of:
Dafna11 [192]

Answer:

Oxygen = 15.999 g/mol

Iron = 3 × 55.845 = 167.535 g/mol

CaCO3 = 20 × 100.0869 = 2001.738 g/mol

8 0
3 years ago
Equal amounts of methylene blue (319.85 g/mol) and potassium permanganate (158.034 g/mol) dyes were added to identical agar plat
tamaranim1 [39]

Answer:

Potassium permanganate.

Explanation:

Both substances are dyes, but the methylene blue has a bigger molecular mass (319.85 g/mol), that means that the particles are bigger in comparison with the potassium permanganate that has a molecular mass of 158.034 g/mol.

Since the molar mass is the half in the case of potassium permanganate, it can be considered that the particle size is the half in size. In the agar, a smaller particle will present less resistance to flow, that means that it going to move faster.

4 0
3 years ago
An acidic fog in pasadena was found to have a ph of 2.50. which expression represents this ph measurement?
joja [24]

Supposing a temperature of 25 degrees and supposing that all activity coefficients are 1 

pH = -log[H+] 
pOH = -log[OH-] 
pH + pOH = 14 

Thus a pH of 2.50 would mean that the [H+], the concentration of the hydrogen ion, would be 10^(-2.50) 

pH + pOH = 14 
pOH = 14 - pH = 14 - 2.5 = 11.5 
MOH- levels would be coordinated with pOH 
pOH = -log[OH-] ==> [OH-] = [MOH-] = 10^-pOH = 10^-11.5 = 3.2 x 10^-12 

Therefore, MOH¯ = 3.2 × 10¯12 M 

5 0
3 years ago
The initial pressure of a mixture of C6H6 and an excess of H2 in a rigid vessel is 1.21 atm. A catalyst is introduced. After the
KengaRu [80]

Answer:

mole fraction of C6H6 = 0.613 atm

Explanation:

The equation for this reaction is :

          C_6H_6 _{(g)} + 3H_2_{(g)} \to C_6H_{12}_{(g)}

Initial      P₁            P₂             0

Final        0           P₂ -P₁/2      P₁

After completion of the reaction;

P₁  +  P₂  = 1.21 atm                    ----- (1)

P₂  -  P₁/2 +  P₁ = 0.839 atm

P₂ + P₁/2 = 0.839 atm          ----- (2)

Subtracting (2) from (1); we have:

P₁/2 = 0.371

P₁ = 0.742 atm

From(1)

P₁  +  P₂  = 1.21 atm

0.742 atm + P₂  = 1.21 atm

P₂  = 1.21 atm - 0.742 atm

P₂  = 0.468 atm

Thus, the partial pressure of C6H6 = 0.742 atm

∴

Partial pressure = Total pressure × mole fraction of C6H6

mole fraction of C6H6 = Partial pressure /  Total pressure

mole fraction of C6H6 = 0.742 atm / 1.21 atm

mole fraction of C6H6 = 0.613 atm

5 0
3 years ago
He image shows the representation of an unknown element in the periodic table.
alexandr402 [8]

Answer:

the number of neutrons in an atom of the element is 10.

Explanation:

neutron: mass # -protons

neutron: 19 (18.9984 (rounded)) - 9

neutron: 19- 9 =10

whole number is equal to the number of protons.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the decrease in temperarure when 2.00 L at 20.0 degrees celsius is compressed to 1.00 L.
    5·1 answer
  • Please answer as many as you can I need the help
    5·1 answer
  • Write the electron configuration for each atom<br><br> A. Carbon<br> B. Argon<br> C. Nickel
    8·1 answer
  • Suppose you have a crystal composed of elements X and Y in which the radius ratio is approximately ½, so that the sodium chlorid
    11·1 answer
  • Nuclear fusion is the source of energy for stars. Besides hydrogen, which other element is most likely also common in stars?
    8·1 answer
  • If the concentration of mercury in the water of a polluted lake is 0.250 μg (micrograms) per liter of water, what is the total m
    5·1 answer
  • The molecular weight of table salt, NaCl, is 58.5 g/mol. A tablespoon of salt weighs 6.37 grams. Calculate the number of moles o
    8·1 answer
  • Do the following calculation and express the answer using correct scientific notation. (6.00x10^23)y(3.00)/284)
    10·1 answer
  • Given 6.25 mol H2O, determine the number of molecules
    9·1 answer
  • Please some one helpppp!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!