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
SSSSS [86.1K]
3 years ago
6

"Give an explanation of the combustion reaction of octane."

Chemistry
1 answer:
SIZIF [17.4K]3 years ago
6 0

Thus we can balance the oxygen atoms by putting a prefix of 25/2 on the left side. To obtain a equation containing whole numbers, we multiply the entire equation by 2. This gives the final equation. 2 C8H18 + 25 O2 ---> 16 CO2 +18 H2O.

You might be interested in
Calculate the volume occupied by 272g
cupoosta [38]

The answer for the following problem is mentioned below.

<u><em>Therefore volume occupied by methane gas is  184.78 × 10^-3 liters </em></u>

Explanation:

Given:

mass of methane(CH_{4}) = 272 grams

pressure (P) = 250 k Pa =250×10^3 Pa

temperature(t) = 54°C =54 + 273 = 327 K

Also given:

R = 8.31JK-1 mol-1 ,

Molar mass of  methane(CH_{4}) = 16.0​  grams

We know;

According to the ideal gas equation,

<u><em>P × V = n × R × T</em></u>

here,

n = m÷M

n =272 ÷ 16

<u><em>n = 17 moles</em></u>

Therefore,

250×10^3 × V = 17 × 8.31 × 327

V = ( 17 × 8.31 × 327 ) ÷ ( 250×10^3 )

V = 184.78 × 10^-3 liters

<u><em>Therefore volume occupied by methane gas is  184.78 × 10^-3 liters </em></u>

<u><em></em></u>

<u><em></em></u>

<u><em></em></u>

<u><em></em></u>

<u><em></em></u>

6 0
3 years ago
Stirring a liquid while you are mixing in another ingredient speeds up the rate of dissolving. Question 13 options: True False
brilliants [131]

Answer:

true

Explanation:

This is because it helps distribute the particles that are being dissolved. 

8 0
3 years ago
Read 2 more answers
3 Na2O(aq) + 2 Al(NO3)3(aq) ----&gt; _ Compound A + _ Compound B
Olin [163]
3Na2O(at) + 2Al(NO3)3(aq) —> 6NaNO3(aq) + Al2O3(s)

This is a double replacement reaction and NaNO3 is aqueous because Na is an alkali metal, plus nitrate is in the solution. Both of these are soluble. Al2O3 is not soluble because it does not contain any element that is soluble and is hence the precipitate.

Hope this helped!
7 0
3 years ago
It is composed of an alloy that is 90% Platinum and 10% Iridium; having a density of 21.186 g/cm3. What is the volume of the Sta
oksian1 [2.3K]
The alloy has a density of 21.186g/cc. So for a kilogram or 1000 grams/21.186 g/cc= 45.7 cc. So the answer is 45.7 cc of the allow to make up a kilogram which shows that the density of the allow can be used to calculate the volume of a larger mass ie the kilogram. 
7 0
3 years ago
Can someone help me Balance chemical equations please
horrorfan [7]
2NaClO3 = 2NaCl + 3O2
Hopes this helps <33
4 0
2 years ago
Other questions:
  • In Europe gasoline is often sold in liters. If a typical fill-up requires 11 gal of gas, how many liters are necessary?
    6·1 answer
  • "the osmotic pressure exerted by a solution is equal to the molarity multiplied by the absolute temperature and the gas constant
    14·2 answers
  • Which of the following elements has chemical properties similar to selenium? Which of the following elements has chemical proper
    8·1 answer
  • Determine the mass of NH4Cl that must be dissolved in 100. grams of H2O to produce a saturated solution at 70.°C.
    13·1 answer
  • NEED HELP ASAP WILL GIVE BRAINLYEST Organisms that are made up of prokaryotic cells are NOT ____________. Multicellular All of t
    13·1 answer
  • Which of the following experimental observations proved that the plum pudding model was flawed? (1 point)
    10·1 answer
  • Depicted below you will see the molecules COH2 and SO3 . Why is COH2 polar while SO3 isn’t?
    5·1 answer
  • [Please see the attatched photo]​
    10·2 answers
  • 12.0 grams of sodium reacts with 5.00 grams of chlorine. What mass of sodium chloride could be produced?
    9·1 answer
  • You are
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!