answer.
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
podryga [215]
2 years ago
13

Which of the following is correct concerning Hess's law?

Chemistry
2 answers:
Margaret [11]2 years ago
3 0
I believe the correct answer would be that t<span>he change in enthalpy can be found by adding the enthalpies of the individual thermochemical reactions of a chemical reaction.</span> In Hess' Law, enthalpy is independent of the mechanism of the reaction. The enthalpy should be the sum of all the changes in the reaction.
lesantik [10]2 years ago
3 0
(C) the change in enthalpy can be found in adding the enthalpies of the individual thermochemical reactions of a chemical reaction

You might be interested in
the height of a column of mercury in barometer is 754.3mm. what us the atmospheric pressure in atm. in kPa.
Aleksandr-060686 [28]
1 atm = 760mmHg
754.3 mmHg / 760 mmHg * 1atm = 0.99 atm
760 mmHg = 101.3 KPa
754.3 mmHg/ 760mmHg *101.3 KPa = 100.54 KPa

Hope this helps!
8 0
2 years ago
Write an equation for the formation of bf3(g) from its elements in their standard states.
blagie [28]
In nature, boron is monoatomic. Therefore, its formula is B.
On the other hand, fluorine is diatomic. Therefore, its formula is F2

Now, the basic unbalanced equation is:
B + F2 .........> BF3

Now, we need to balance this equation. As you can see, we have two fluorine moles entering the reaction and 3 formed in the products.
Balancing the equation, we will reach the following balanced reaction:
2B + 3F2 .......> 2BF3 
7 0
2 years ago
In a two-step synthesis where the first reaction has a 55% yield and the second reaction has a 24% yield, the overall percent yi
nekit [7.7K]

Answer:

13,2 %.

Explanation:

Overall yield = 0.55 * 0.24

= 0.132

= 13,2 %.

7 0
2 years ago
Which condition can cause excessive pressure on the high side of a self contained active recovery device
murzikaleks [220]

Answer:

What can cause excessive pressure on the high side of an active self-contained recovery device? A closed recovery tank inlet valve or excessive air or other non condensables in the recovery tank (either A or B) Portable refillable tanks or containers used to ship recovered refrigerants must meet what standard(s)?

Explanation:

please mark me as brainliest thank you

5 0
1 year ago
12. The most common factors that cause chemical reactions to occur are all the following except
ruslelena [56]
Transfer of electrons
6 0
2 years ago
Other questions:
  • Enter the symbol of a sodium ion, Na+, followed by the formula of a sulfate ion, SO42−. Separate the ions with a comma only—spac
    15·2 answers
  • How many cycles of the synthesis pathway are needed to produce myristic acid, c13h27cooh?
    7·1 answer
  • What is the mole fraction of potassium dichromate, K2Cr2O7, in a solution prepared from 24.42 g of potassium dichromate and 240.
    12·1 answer
  • 6. Find the number of centimeters in 1.00 x 102 yards. (1 yd = 3 ft, 1 ft = 12 in, 2.54 cm = 1
    5·1 answer
  • What qualities of a chemical reaction are affected by enzymes? select all that apply. the speed of the reaction the products of
    6·2 answers
  • The infrared spectrum above represents the absorption of certain wavelengths of radiation by molecules of CO2. Which of the foll
    9·1 answer
  • 1.35 Draw structures for all constitutional isomers with the following molecular formulas: (a) C6H14 (b) C2H5Cl (c) C2H4Cl2 (d )
    9·1 answer
  • A compound is made up of 28 g N, 24 g C, 48 g O, and 8 g H .What is the empirical formula?
    15·1 answer
  • A chef takes four pans from different parts of her kitchen and puts them in two stacks. The diagram above shows the pans before
    12·2 answers
  • The pH of an acidic solution is 2.11. What is [H⁺]
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!