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
juin [17]
3 years ago
5

student in chemistry 150-02 weighed out 55.5g of octane c8h18 and allowed it to react with oxygen, o2 the product formed were ca

rbon dioxide co2 and water h2o. Balance the equation
Chemistry
1 answer:
Tasya [4]3 years ago
3 0

Answer:

C8H8 + 10O2 → 8CO2 + 4H2O

Explanation:

unbalanced reaction:

C8H8 + O2 → CO2 + H2O

balanced for semireactions:

(1) 16H2O + C8H8 → 8CO2 + 40H+

(2) 10(4H+ + O2 → 2H2O)

⇒ 40H+ + 10O2 → 20H2O

(1) + (2):

balanced reaction:

⇒ C8H8 + 10O2 → 8CO2 + 4H2O

                      8 - C - 8

                     20 - O2 - 20

                      8 - H - 8

You might be interested in
Gerald's science teacher mixed room temperature samples of hydrochloric acid and sodium hydroxide in a large beaker. The solutio
shutvik [7]

Answer: Option (D) is the correct answer.

Explanation:

The chemical reaction equation will be as follows.

      HCl + NaOH \rightarrow NaCl + H_{2}O

This means a new substance has been formed and a chemical change has taken place.

A chemical reaction in which heat energy is absorbed by the reactant molecules is known as an endothermic reaction.  

For example, A + B + Heat \rightarrow AB

On the other hand, a chemical reaction in which heat energy is released by the reactant molecules is known as an exothermic reaction.  

For example, C + D \rightarrow CD + Heat is an exothermic reaction.

Thus, we can conclude that in the given situation the beaker most likely felt warm because a chemical reaction was producing a new substance.

8 0
3 years ago
What are the three main particles in the modern model of an atom
EastWind [94]
Protons and neutrons in the nucleus (the bit in the middle) and small tiny electrons that orbit the nucleus
7 0
3 years ago
There are 2 gasses, A, B. They weigh 2.46g and 0.5g respectively, and the Volume of A is 3 times the volume of B. A has a molecu
dangina [55]

Answer:

B

Explanation:

molecular mass of B is 28

8 0
2 years ago
Read 2 more answers
Consider the cell described below at 259 K: Ni | Ni2+ (1.15 M) || Fe3+ (2.23 M) | Fe Given the standard reduction potentials fou
likoan [24]

Answer:

i dont know sorry :(

Explanation:

8 0
3 years ago
Which law relates to the ideal gas law?
Kamila [148]

The equation of state for a hypothetical ideal gas is known as the ideal gas law, sometimes known as the general gas equation. i.e. PV = nRT or P1V1 = P2V2.

  • According to the ideal gas law, the sum of the absolute temperature of the gas and the universal gas constant is equal to the product of the pressure and volume of one gram of an ideal gas.
  • Robert Boyle, Gay-Lussac, and Amedeo Avogadro's observational work served as the basis for the ideal gas law. The Ideal gas equation, which simultaneously describes every relationship, is obtained by combining all of their observations into a single statement.
  • When applying the gas constant R = 0.082 L.atm/K.mol, pressure, volume, and temperature should all be expressed in units of atmospheres (atm), litres (L), and kelvin (K).
  • At high pressure and low temperature, the ideal gas law basically fails because molecule size and intermolecular forces are no longer negligible but rather become significant considerations.

Learn more about ideal gas law here:

brainly.com/question/26040104

#SPJ9

3 0
1 year ago
Other questions:
  • Which is the electron configuration for zinc?
    6·1 answer
  • q=mcΔT. Given this equation find the change in temperature. q = 600 J, m= 25.0 g, c= 0.897 J/g°C. What is ΔT?
    14·1 answer
  • For which set of crystallographic planes will a first-order diffraction peak occur at a diffraction angle of 44.53° for FCC nick
    13·1 answer
  • How many atoms are in 2 mol of Iron
    8·2 answers
  • Identify the following as an example of a physical property or a chemical property. A bar of lead is more easily bent (malleable
    13·2 answers
  • An endothermic dissolution process a. absorbs energy as heat and has positive enthalpy of solution. b. releases energy as heat a
    6·1 answer
  • 5.6 x 10^3 cm = ___cg
    14·1 answer
  • Please help y’all I don’t understand
    13·2 answers
  • Gravity on Earth is 9.8 m/s2, and gravity on the Moon is 1.6 m/s2.
    8·1 answer
  • Ас
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!