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
kumpel [21]
4 years ago
15

Consider the reaction pathway graph below.

Chemistry
1 answer:
Alex17521 [72]4 years ago
6 0
Hello!

The reaction that the graph represents is A. Exothermic because Hrxn=-167 kJ

To calculate Hrxn we apply the following equation:

Hrxn=Hproducts-Hreagents=-625kJ-(-458kJ)=-167kJ

Looking at the graph, and at the result of the calculations, we can see that the enthalpy of the products is lower than the enthalpy of the reagents, because the sign is negative. That means that the reaction releases energy in the form of heat and that the reaction is exothermic.

Have a nice day!
You might be interested in
Solution A has twice as much solute as solution B is it possible for the solutions to have the same concentration
pishuonlain [190]
Yes. As long as the ratio of solute and solvent is same for both solution, the solution has the same concentration. for example, solution A has 2 ml of water, and 1 ml of sucrose. Solution B has 4ml of water and 2ml of sucrose. Both has a ratio of water to sucrose by 2 : 1. they have the same concentration of 50% sucrose. 
5 0
4 years ago
The Moon rises at noon and sets at midnight. What is the phase of the Moon?
Sidana [21]
The answer is full moon

5 0
4 years ago
Read 2 more answers
6. Салыстырып
Annette [7]

Answer:

????

???

?????

???

Explanation:

plz follow me

7 0
3 years ago
Which part of the cell controls many functions of the cell and stores DNA?
kari74 [83]

Answer:

The Nucleus...

it perform many activities and stores DNA in a cell.

6 0
3 years ago
Read 2 more answers
How much energy is needed to raise 70 g of paper 40 degrees celsius?
Natali5045456 [20]

Explanation:      Heat capacity is the amount of heat required to change the temperature of a ... Therefore, specific heat is measured in Joules per g times degree Celsius

5 0
3 years ago
Other questions:
  • Annabeth has 7.2 cups of cookie batter, represented by this model. If each cookie uses 0.45 cup of batter, how many cookies can
    14·2 answers
  • Find the volume of 4.5 moles of H2
    7·1 answer
  • If someone who is good at this can help me
    5·1 answer
  • How many total moles of ions are released when the following sample dissolves completely in water?
    13·1 answer
  • How many atoms of oxygen are in 0.100 mol of silicon dioxide?
    15·1 answer
  • Classify the bonds formed between each pair as ionic, polar covalent, or nonpolar covalent based solely on each element's positi
    9·1 answer
  • Which transformation represents light energy transforming into chemical energy?
    15·1 answer
  • F.ree points for all!
    7·1 answer
  • How you rank the following items in order of complexity.
    11·1 answer
  • Bromine can be a solid, liquid or a gas depending on the temperature. In which which physical state with 10g of bromine store th
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!