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
12345 [234]
3 years ago
12

Use the reaction and bond information to answer the question.

Chemistry
1 answer:
ValentinkaMS [17]3 years ago
7 0

As

\\ \bull\sf\dashrightarrow \Delta H=+ve

\\ \bull\sf\dashrightarrow HE_1=HE_2

Let required absorption energy is x

\\ \bull\sf\dashrightarrow (432+799+x=413+745+358+467)

\\ \bull\sf\dashrightarrow 1231+x=1983

But

\\ \bull\sf\dashrightarrow x-1231=0

Hence

\\ \bull\sf\dashrightarrow x=1231KJ/mol

Option C is correct

You might be interested in
Many important biochemicals are organic acids, such as pyruvic acid ( p K a = 2.50 ) and lactic acid ( p K a = 3.86 ) . The conj
Ivenika [448]

Answer:

Pyruvic acid: conjugate base

Lactic acid: conjugate base

Explanation:

The ratio of conjugate base to conjugate acid can be found using the Henderson-Hasselbalch equation when the pH and pKa are known.

pH = pKa + log([A⁻]/[HA])

The equation can be rearranged to solve for the ratio:

pH - pKa = log([A⁻]/[HA])

[A⁻]/[HA] = 10^(pH-pKa)

Now we can calculate the ratio for the pyruvic acid:

[A⁻]/[HA] = 10^(pH-pKa) = 10^(7.4 - 2.50) = 79433

[A⁻] = 79433[HA]

There is a much higher concentration of the conjugate base.

Similarly for lactic acid:

[A⁻]/[HA] = 10^(pH-pKa) = 10^(7.4 - 3.86) = 3467

[A⁻] = 3467[HA]

For lactic acid the conjugate base also dominates at pH 7.4

6 0
4 years ago
1. What is the name of the covalent compound CCl4?2. What is the name of the covalent compound N2O5?
mr_godi [17]

Answer:

It's carbon tetrachloride.

It's Dinitrogen Pentoxide.

Hope this helped!!!

5 0
3 years ago
Read 2 more answers
Calculate the ph of the solution 0.2M Mg(OH)2
Kipish [7]

Mg(OH)2 is base

Oh = 0.2 x 2 = .4

Poh = - Log (.4)

= .3979

Ph + Poh = 14

Ph = 14 - .3979

= 13.60

6 0
3 years ago
Read 2 more answers
1) What gives an objedt gravity?
Reptile [31]

1) the mass of an object gives gravity, the more massive an object is the more gravity it has on the things around it

2)the earth's mass is so much greater than our own that we feel it's gravity stronger than say the moon which has a smaller mass than the earth

3) mass and how far away you are from the object

4)as mass increases so does gravity (sorry I do not remeber the equation but there are some specific ones for different situations between two massive objects)

5) when distance increases, gravity decreases (again I do not remeber by how much)

6 0
3 years ago
State the type of bonding—ionic, covalent, or metallic—you would expect in each:<br> (c) LiCl(s).
maxonik [38]

LiCl(s) forms an ionic bond.

<h3>What is ionic bond?</h3>

The main interaction in ionic compounds is ionic bonding, a type of chemical bonding that involves the electrostatic attraction between two atoms or ions with dramatically differing electronegativities. Along with metallic and covalent bonds, it is one of the most common types of bonds. Atoms (or collections of atoms) possessing an electrical charge are known as ions. Ions with negative charges are created when atoms gain electrons (called anions). Positively charged ions are produced when atoms lose electrons (called cations). In contrast to covalence, this electron transfer is referred to as electrovalence.

Ionic chemicals normally do not conduct electricity when solid, only when molten or in solution. Depending on the charge of the ions they are made of, ionic compounds typically have a high melting point.

To learn more about ionic bond from the given link:

brainly.com/question/13526463

#SPJ4

5 0
2 years ago
Other questions:
  • How can scientists practice ethical lab behavior?
    13·2 answers
  • A 6.0M solution HCl is diluted to 1.0M How many milliliters of the 6.0M solution would be used to prepare 100.o mL of the dilute
    5·2 answers
  • when plants and animals die and decay, they become? answers useless ,fertilizer ,harmless, bluish-black
    8·2 answers
  • For dilute aqueous solutions in which the density of the solution is roughly equal to that of the pure solvent, the molarity of
    5·1 answer
  • Question 4
    13·1 answer
  • What does the pH of a solution indicate
    10·1 answer
  • Identify and name the functional<br> present in (i) C₂ H₂ (ii). CH₃ CH₂OH.
    5·1 answer
  • 4. What is valency? Explain different types of<br>valencies​
    10·1 answer
  • WHat is the defination of Eukaryote
    15·1 answer
  • I need help wit this
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!