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
kkurt [141]
2 years ago
11

The energy required for the hypothetical reaction

Chemistry
1 answer:
Vika [28.1K]2 years ago
8 0

Answer:

402 kJ

Explanation:

Because the energy of the reaction is positive, the reaction is endothermic. This means energy is a reactant.

You can determine how much energy/heat is absorbed using the balanced chemical equation. You can convert the moles A using the ratio composed of the coefficient in front of A and the energy required for each reaction.

2A + B + 309 kJ ⇌ 2C + 2D

2.60 moles A             309 kJ
----------------------  x  --------------------  = 402 kJ
                                 2 moles A

You might be interested in
Does sound travel best through solids, liquids, or gases?
IRISSAK [1]
In gas the speed of sound is 343.2 meters per second, in liquid the speed of sound is 1,484 meters per second and in solids like steel it travels 5,120 meters per second.
8 0
3 years ago
Read 2 more answers
For an ideal gas under constant volume, if the pressure is tripled, what happens to the Kelvin temperature?
EleoNora [17]

Answer:

Increase pressure 3X => increase Temperature 3X

Explanation:

Gay-Lussac Law => T ∝ P => T =kP => Empirical Relationship => T₁/P₁ = T₂/P₂  

=> T₂ = T₁P₂/P₁

Given P₂ = 3P₁ => T₂ = T₁(3P₁)/P₁ = 3T₁

6 0
3 years ago
Which of the following events fail to follow the law of conservation of matter? Select the correct answer below
Archy [21]

Answer:

d

Explanation:

you just cant

8 0
3 years ago
Where do reactions in a solid generally take place?
Sholpan [36]

Answer:

It's D.  On the surface of the solid.

Explanation:

If the reactant is a solid, the surface area of the solid will impact how fast the reaction goes. This is because the two types of molecule can only bump into each other at the liquid solid interface, i.e. on the surface of the solid. So the larger the surface area of the solid, the faster the reaction will be.

3 0
3 years ago
1
Musya8 [376]

Answer:

A perfect mold of a dinosaur bone

3 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose that Max and Maria recorded data from
    9·2 answers
  • What is the molar ratio for the following equation after it has been properly balanced?
    12·1 answer
  • What protects the Earth from meteorites and the sun's rays? (4 points)
    10·1 answer
  • Misconceptions about psychological disorders ​
    11·1 answer
  • Which moon phase comes after a first quarter moon? (Show and label it)
    12·1 answer
  • The shielding of electrons gives rise to an effective nuclear charge, Zeff, which explains why boron is larger than oxygen. Esti
    9·1 answer
  • Three reasons for air is mixture and water is compound
    10·2 answers
  • Select all the correct answers.
    7·1 answer
  • Pb has an atomic number of 82. It has an isotope Pb-207. The mass number is 207.
    14·1 answer
  • How many grams is needed to make the following solution?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!