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
VMariaS [17]
2 years ago
10

Calculate ΔHrxn for the following reaction: 5C(s) 6H2(g)→C5H12(l) Use the following reactions and given ΔH values: C5H12(l) 8O2(

g)→5CO2(g) 6H2O(g),ΔHC(s) O2(g)→CO2(g),ΔH2H2(g) O2(g)→2H2O(g),ΔH
Chemistry
1 answer:
Setler79 [48]2 years ago
8 0

Answer: its 4xb236.52

Explanation:

You might be interested in
How many phosphate bonds are responsible for the high energy content of ATP?
Nataly_w [17]
The answer is a. one. There are three phosphate bonds in the ATP but only the first bond is responsible for the high energy. When this bond break, ATP will change to ADP.
4 0
3 years ago
Read 2 more answers
10. The Proton is special! What does it tell us?<br> The proton tells me..
Dovator [93]

Answer:

These two numbers are fixed for an element. The mass number tells us the number the sum of nucleons of protons and neutrons in the nucleus of an atom. The atomic number also known as the proton number is the number of protons found in the nucleus of an atom. ... The atomic number uniquely identifies a chemical element.

Explanation:

8 0
3 years ago
Heat in a substance is an example of ________ energy. A. phase B. kinetic C. potential D. evaporative
lisov135 [29]
The correct answer that would best complete the given statement above is option B. Heat in a substance is an example of a kinetic energy. Kinetic energy is a kind of energy that is in motion. We can feel the kinetic energy of heat through their temperatures because heat is being transferred. 
8 0
3 years ago
Read 2 more answers
Magnesium oxide (MgO) forms when the metal burns in air. (a) If 1-25 9 of MgO contains 0.754 g of Mg, what is the mass ratio of
Vsevolod [243]

Answer:

Explanation:

a )

1.25 g MgO contains .754 g of Mg .Rest will be O

so oxide = 1.25 - .754 = 0.496 g

ratio of magnesium to oxide = .754/.496 = 1.52

b) 1.25 g of MgO contains .754 g of Mg

534 g of MgO contains .754 x 534 / 1.25 g = 322.11 g

5 0
3 years ago
An acid sample of an unknown concentration is contained in a erlenmeyer flask. Which technique below would be best suited to ana
Ivenika [448]

Answer:

Titration

Explanation:

The best technique which can be used to determine the number of moles of the HCl in the sample is titration.

The given amount of HCl solution must be titrated with known concentration of the base like NaOH.

The volume of NaOH required must be noted also.

According to the reaction,

NaOH+HCl\rightarrow NaCl+H_2O

At equivalence point

Moles of HCl = Moles of NaOH

Considering:-

Moles of HCl=Molarity_{NaOH}\times Volume_{NaOH}

Thus, in this way, moles of HCl can be determined.

4 0
2 years ago
Other questions:
  • when sodium atom reacts with chlorine atoms form a compound, the electron configurations of ions forming the compound are the sa
    8·1 answer
  • Why do polar bonds form?
    13·1 answer
  • Choose all the answers that apply.
    12·2 answers
  • When would you be most likely to see a rainbow
    5·2 answers
  • 2) Os foguetes são utilizados para levar pessoas ao espaço (os astronautas), mas principalmente cargas como, por exemplo, os sat
    7·1 answer
  • Which elements are found on the left to the middle of the periodic table
    10·2 answers
  • Which statement justifies that hydrogen peroxide (H2O2) is a polar molecule?
    11·1 answer
  • Why is burning not a physical change?
    15·2 answers
  • Analyze the data and determine the actual concentration of calcium chloride in the solution. Show all calculations and report in
    7·1 answer
  • The element that appears farthest to the is written first in the chemical name of a covalent compound.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!