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
barxatty [35]
3 years ago
6

The octane number of fuel is 79%. What does that mean

Chemistry
1 answer:
sladkih [1.3K]3 years ago
6 0

Answer:

Octane number, measure of the ability of a fuel to resist knocking when ignited in a mixture with air in the cylinder of an internal-combustion engine.

Octane number is also known as octane rating. Octane numbers are based on a scale on which isooctane is 100 (minimal knock) and heptane is 0 (bad knock). The higher the octane number, the more compression required for fuel ignition. Fuels with high octane numbers are used in high performance gasoline engines.

(Hope this helps) Sky

You might be interested in
How much pure acid is in 520 milliliters of a 13 ​% ​solution?
Liono4ka [1.6K]
It actually depends on the percentage of the concentration give. Percentages can be expressed as %mass/mass, %volume/volume or %mass/volume. To keep things simple, let's just assume that it is in %volume/volume. Thus, 13% of 520 mL is pure acid.

Volume of pure acid = 520*0.13 = 67.6 mL
4 0
3 years ago
A 20 ml sample of .875 m hcl solution was diluted t o150 ml. calculate the molarity of the resulting solution
Veronika [31]
0.11666667 because M1V1=M2V2
4 0
3 years ago
Why is sound able to travel faster through a solid than a gas?
noname [10]

Answer:

Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations (energy) faster.

3 0
3 years ago
Read 2 more answers
Select the correct answer. What energy does a rock resting on a hilltop store? A. gravitational energy B. chemical energy C. the
Colt1911 [192]

Answer:

A.

Explanation:

I chose this because it seems more reasonable . Because its in the air so im guess that its gravitational bc to stay on top of a hill you need balance . Im sorry if its wrong k . I tried .

7 0
3 years ago
Read 2 more answers
Why should the mole to mole ratio be a whole number ratio?​
muminat

Answer: The mole to mole ratio are the stoichiometric factors of the chemicals in your balanced reactions and are always in whole numbers. When we balance a chemical reaction, whole numbers are always used for easy convention.

Explanation:

7 0
3 years ago
Other questions:
  • During what stage of the cell cycle does replication occur
    7·1 answer
  • By the end of this lab, you will determine whether you should add cocoa mix (a solid) before or after heating water (liquid) to
    9·2 answers
  • A<br> In 25 words or fewer, what is the scientific question for the boiling<br> water experiment?
    14·1 answer
  • Dumbledore decides to gives a surprise demonstration. He starts with a hydrate of Na2CO3 which has a mass of 4.31 g before heati
    12·1 answer
  • A rigid vessel filled to 0.8 of its volume with liquid nitrogen at its normal boiling point is allowed to warm to 25°C. What pre
    10·1 answer
  • A man stands on the top of the hill at point A and then runs down at point B. What kind of energy conversion occurs from point A
    5·2 answers
  • What is the answer to number 6
    15·1 answer
  • The development of a nuclear power plant at an ocean site is expected to produce an enormous amount of electric power for a larg
    14·2 answers
  • What is physiography ? ​
    13·1 answer
  • calculate the mass of HNO3 obtained when 20.0g of KNO3 reacts completely with excess concentrated H2SO4
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!