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]
1 year ago
11

The energy required for the hypothetical reaction

Chemistry
1 answer:
Vika [28.1K]1 year 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
Im doing a science project and need examples and non-examples of an Atom. some examples of an atom is neon, hydrogen, argon, etc
gogolik [260]

Answer:

Anything not on the periodic table is an element non example! ... So, for a substance to be an element, all of its atoms must have the same number of protons. Examples of elements include hydrogen, lithium, nickel, and radium.

Explanation:

6 0
2 years ago
Can sulphur pentrate glass
Law Incorporation [45]
According to research, yes sulphur can penetrate glass.
7 0
3 years ago
If the half-life of an element is 150 years, how much of a 400 gram sample would remain in 750 years?
photoshop1234 [79]

Answer:

y

Explanation:

5 0
3 years ago
Which two of the following elements would you expect to be most similar: nitrogen, chlorine, barium, fluorine, and sulfur? 
Anon25 [30]
Nitrogen clorine flourine and sulfur
8 0
2 years ago
Read 2 more answers
Which of these atoms are electrically neutral?
Xelga [282]

Atoms are electrically neutral because they contain equal quantities of positively charged protons and negatively charged electrons. Electrons and protons have equal but opposite charges, so the result is no net charge. Ions are atoms that have gained or lost electrons.

4 0
3 years ago
Read 2 more answers
Other questions:
  • How are elements that are gases at room temperature designated in the periodic table
    7·1 answer
  • What are all 4 levels of the energy pyramid? HELP ASAP
    9·2 answers
  • The secondary structure of a protein refers to the ___________.a. three-dimensional folded structure of the protein. b. configur
    6·1 answer
  • The standard unit (SI) for mass is
    14·1 answer
  • Draw all the structural isomers for the molecular formula C3H8O. Be careful not to draw any structures by crossing one line over
    6·1 answer
  • You run a “5k” for charity. How many feet do you run
    7·2 answers
  • Electrolysis is used in the electroplating of metals. The same amount of current is passed through separate aqueous solutions of
    10·1 answer
  • Consider this reaction:
    9·1 answer
  • Bob pours tomato sauce over cooked spaghetti noodles and stirs them together to make a spaghetti cassarole. Which term best desc
    15·1 answer
  • A gas bottle contains 8. 61×1023 oxygen molecules at a temperature of 359. 0 k. what is the thermal energy of the gas? (you migh
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!