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
Dmitry_Shevchenko [17]
3 years ago
15

Describe how gasoline, as a fuel, can undergo a chemical change.

Chemistry
1 answer:
kvasek [131]3 years ago
5 0

Answer with Explanation:

A "chemical change" occurs when the structure of the molecules change. If there's no change in structure, it is called a "physical change." This also means that a <em>chemical reaction </em>has to occur for something to be considered a chemical change.

Gasoline when used as a fuel is being transformed into other forms of energy. It undergoes a process called <em>"combustion."</em>

When used as a fuel for cars, <em>the gasoline is being burned to produce </em><u><em>heat energy.</em></u> This energy is then converted into <u><em>mechanical energy</em></u> that allows the car to move. Clearly, the gasoline has undergone a chemical change.

You might be interested in
Why do rats like cheese? &lt;&gt;-&lt;&gt; Im freaking out here dudes
AVprozaik [17]
They like cheese because it is easy to eat and it tases really good
7 0
3 years ago
Read 2 more answers
True or False: Increasing the amplitude<br> changes the wavelength.
dem82 [27]

Answer:

False

Explanation:

Amplitude does not affect wavelength

5 0
2 years ago
Suppose you have a 2.0 molar solution of sodium hydroxide (naoh), and you need 65 ml of 0.6 molar naoh. how should you make this
nalin [4]

The given molarity of sodium hydroxide solution = 2.0 M

The required concentration of sodium hydroxide is 65 mL of 0.6 M NaOH

Converting 65 mL to L:

65mL*\frac{1L}{1000mL} =0.065L

Calculating the moles of NaOH in the final solution:

0.065L * \frac{0.6 mol}{L} =0.039mol

Finding out the volume of 2.0 M solution taken to prepare the final solution:

0.039 mol * \frac{1L}{2.0mol}=0.0195L*\frac{1000mL}{1L} =19.5mL

Therefore, 19.5 mL of 2.0 M NaOH solution and make it up to 65 mL to prepare 0.6 M NaOH solution.


3 0
3 years ago
Strontium carbonate + sulphuric acid, chemical equation​
tangare [24]
<h3>Answer:</h3>

SrCO₃ + H₂SO₄ → SrSO₄ + H₂O + CO₂

<h3>Explanation:</h3>

We are required to complete the chemical equation given;

strontium carbonate + sulfuric acid → ??

  • We know that, carbonates reacts with acids to form a salt, water and carbon dioxide.
  • Strontium carbonate reacts with sulfuric acid to form strontium sulfate, water and carbon dioxide.
  • Therefore, the equation for the reaction is;

SrCO₃ + H₂SO₄ → SrSO₄ + H₂O + CO₂

  • The equation is balanced as the number of atoms of each element are equal on both sides of the equation.
7 0
3 years ago
PLEASE HELP!
cricket20 [7]

Answer:

Add water to the lemon juice to dilute it.

Explanation:

pH value is the measure of alkalinity or acidity of a substance. The pH scale range from 0-14 . The lower the pH value the higher the acidity while the higher the pH value the higher the alkalinity. This simply means on the pH scale , if the pH value is 7 it depicts neutrality. 7 upwards indicates an increasing alkalinity while 7 downwards indicates an increasing acidity.

Acidic substance possess an hydrogen ion (H+) while alkaline substance possess more of hydroxide ions(OH-).

The pH value of lemon juice is usually low at a rate of 2 to 4 pH value . That simply means lemon juice is acidic and contains more hydrogen ions. The best option to increase the pH value of 2 is adding water molecule to neutralize it acidity content.

Adding water molecules(H20) will decrease the acidity and reduce the hydrogen ions that contributes to lemon's juice acidity and invariably increase it pH value.    

5 0
3 years ago
Other questions:
  • The molecular structure of water contains two atoms of hydrogen and one atom of oxygen. When water reaches its boiling point and
    11·1 answer
  • A lake in Utah has a hydronium ion (H3O+) concentration of 4.60 x 10-9 M. Calculate the pH of the water.
    12·1 answer
  • Using complete sentences, explain how to predict the products and balance the reaction for the combustion of butane, C4H10. C4H1
    6·1 answer
  • Earth’s mantle is a _____.
    15·2 answers
  • At constant volume, the heat of combustion of a particular compound, compound A, is − 3039.0 kJ / mol. When 1.697 g of compound
    11·1 answer
  • What is the mass of a cube measuring 3cm on each side that had a density of 8.1g/cm3?
    12·1 answer
  • State of water with high energy that's takes the sale and volume of it's container
    8·1 answer
  • 's A pitcher contains 1 gallon of
    11·1 answer
  • What is the chemical formula for sodium perchlorate?​
    11·2 answers
  • What is the speed of a wave with a frequency of 2 Hz and a wavelength of 87m (subject is science) pls answer fast
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!