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
SashulF [63]
3 years ago
7

HELP PLEASE !!!!!!!!!

Chemistry
1 answer:
Paha777 [63]3 years ago
5 0
The forces are called "strong nuclear".
You might be interested in
What two substances are formed at the end point of a neutralization reaction
Slav-nsk [51]
Most likely the answer is water and a salt. When a strong acid and strong base react the OH and H form water and the cation from the base and anion from the acid forms a salt. I hope this helps. Let me know if anything is unclear.
6 0
3 years ago
The strength of a covalent bond depends upon the size of the atoms and the bond order. In general short bonds are strong bonds.1
Oksana_A [137]

Answer:

<u>Bond energy of</u> (A) C≡C > (B) C=C

<u>and, </u>(C) C=N > (D) C-N

Explanation:

Bond energy refers to the amount of energy required to break a bond or the energy released when a bond is formed. Bond energy of a covalent bond suggests the bond strength of the chemical bond and depends on the <u>bond length and bond order of the chemical bond. </u>

<u>The bond energy of a chemical bond increases with the bond order and decreases with the bond length</u>. As, length of a bond decreases with increase in the bond order.

First pair: (A) C≡C (B) C=C

The bond order of C≡C - 3, the bond order of C=C - 2

Since the bond order: C≡C > C=C

Bond length: C≡C < C=C

<u>Therefore, bond energy of (A) C≡C > (B) C=C</u>

Second pair: (C) C=N (D) C-N

The bond order of C=N - 2, the bond order of C-N - 1

Since the bond order: C=N > C-N

Bond length: C=N < C-N

<u>Therefore, bond energy of (C) C=N > (D) C-N</u>

8 0
3 years ago
The half life of a certain radioactive element is 800 years. How old is an object if only 12.5% of radioactive atoms in it remai
Levart [38]

Given,  half life of a certain radioactive element = 800 years.

Amount of substance remaining at time t = 12.5%

Lets consider the initial amount of the radioactive substance  = 100%

Using the half life equation:

A = A₀(1/2)^t/t₁/₂

where A₀ is the amount of radioactive substance at time zero and A is the amount of radioactive substance at time t, and t₁/₂ is the half-life of the radioactive substance.

Plugging the given data into the half life equation we have,

12.5 = 100 . (1/2)^t/800

12.5/100 = (1/2)^t/800

0.125 = (0.5)^t/800

(0.5)^3 = (0.5)^t/800

3 = t/800

t = 2400 years

Thus the object is 2400 years  old.



6 0
3 years ago
Effect of fossil fuel emission on oceans?
BlackZzzverrR [31]
Fossil fuel emissions can create acid rain, which in turn increases the pH of ocean water, harming the organisms in the ocean.<span />
7 0
3 years ago
"Conservation of energy" refers to the fact that _____.
Agata [3.3K]

Answer: Option (b) is the correct answer.

Explanation:

According to the law of conservation of energy, it is known that energy can neither be created nor it can be destroyed.

But energy can be changed from one form to another.

Whereas entropy is the degree of randomness present within the molecules of a substance or object.

For example, gas molecules are able to move rapidly so, they have more entropy as compared to solid and liquid substances.

According to second law of thermodynamics, entropy of the system is always increasing.

Thus, we can conclude that "Conservation of energy" refers to the fact that energy cannot be created or destroyed but can be converted from one form to another.

8 0
3 years ago
Other questions:
  • How hot, in degrees Celsius, would the air inside the balloon have to get in order for the balloon to lift off the ground? Assum
    5·1 answer
  • Copper is used in household wiring because ____.
    6·2 answers
  • PLEASE ASAP. CHM help!
    11·1 answer
  • Which compound contains a radical
    15·2 answers
  • Part 1 - Circle the elements in the list below.
    8·1 answer
  • Which element is the least metallic between cadmium, silver, zinc, or iron?
    7·1 answer
  • A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is
    12·1 answer
  • ____causes movement of an object,whereas____is the work done ✔️ on an object in given amount of time
    12·2 answers
  • Which of the following statement is not true?
    11·1 answer
  • Name a metal and non metal which are liquid at normal pressure and temperature<br>​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!