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
Gnoma [55]
3 years ago
9

Aluminum can react with oxygen gas to produce aluminum oxide (Al2O3). What type of reaction is this? A. single replacement

Chemistry
2 answers:
HACTEHA [7]3 years ago
6 0
B. combustion would be the correct option
svlad2 [7]3 years ago
6 0

Answer: B. combustion

Explanation: 2Al+3O_2\rightarrow 2Al_2O_3

A. Single replacement: A single replacement reaction is one in which a more reactive element displaces a less reactive element from its salt solution.

B. Combustion: is a chemical reaction between a substance and an oxidant usually atmospheric oxygen accompanied by generation of heat and light.

C. Double replacement: A double replacement reaction is one in which exchange of ions take place.

D. Decomposition : is a reaction in which one reactant decomposes to give two or more than two products.

You might be interested in
Will name brainliest
aliina [53]
<h3>Answer:</h3>

c=54

Explanation:

6•c/6= 6•9

c=6•9

c=54

6 0
2 years ago
Read 2 more answers
One way to determine the degree of saturation of a solid-liquid solution is to drop a crystal of the solute into the solution.
Dafna1 [17]

The answer is D: Saturated.

A saturated solution is one in which the exact maximum amount of solute has been dissolved.  So, new solute will not dissolve in the solution.  In contrast, an unsaturated solution can hold more solute, so if that option were correct, the crystal would have dissolved.

The other two terms are a bit more complicated.  A supersaturated solution is one holding an amount of solute above the sustainable limit.  Because of that, when more solute is added, the solution will immediately adjust, and some solute will come out of solution in a precipitate.  Because the crystal isn't growing, we can eliminate this option.

A concentrated solution is one holding a relatively large amount of solute.  However, you can have concentrated solutions that are saturated and unconcentrated (the word for this is dilute) solutions that aren't saturated.  Therefore, we can say that because the crystal doesn't dissolve, this solution is saturated, but we can't say with certainty that it is concentrated.

Because the first three options are invalid, as described above, while the scenario does describe a saturated solution, D is the correct answer.

7 0
3 years ago
Read 2 more answers
How does the law of conservation of energy apply to the changes in potential and kinetic energy of a pencil as it falls to the f
antiseptic1488 [7]

The changes in the energy law of conservation of energy is Potential energy is converted to kinetic energy. Kinetic energy is converted into potential energy.

<h3>What is the law of conservation of energy?</h3>

Law of conservation of energy says that energy can neither be created nor destroyed, it just transformed from one form to another.

The energies are kinetic, potential, mechanical, gravitational, electrical, etc.

Thus, the changes in the energy law of conservation of energy is Potential energy is converted to kinetic energy. Kinetic energy is converted into potential energy.

Learn more about law of conservation of energy

brainly.com/question/20971995

#SPJ4

7 0
1 year ago
You burn a 15g jellybean to warm 50 mL of water, which increases the temperature of the water 25 °C. How many calories of heat a
Juli2301 [7.4K]

Answer:

Q = 375\,cal

Explanation:

The quantity of heat transfered from the jellybean to the water is:

Q = \rho\cdot V \cdot c\cdot \Delta T

Q = \left(1\,\frac{g}{cm^{3}}\right)\cdot (15\,cm^{3})\cdot \left(1\,\frac{cal}{g\cdot ^{\circ} C} \right)\cdot (25\,^{\circ}C )

Q = 375\,cal

7 0
3 years ago
Read 2 more answers
What observations can we make that are the result of the rotation of the earth on its axis? (How do we know that the earth is ro
Liula [17]

day and night is the main way you can tell as well as the stars moving across the sky, and we can tell it rotates by looking at the sky and seeing the sun move across the sky during the day.

8 0
2 years ago
Other questions:
  • The reaction between aluminium powder and iron(III) oxide is used in the rail industry. a. i) write a word equation and a balanc
    11·1 answer
  • A 0.1014 g sample of a purified CHO compound was burned in a combustion apparatus and produced 0.1486 g CO2 and 0.0609 g of H2O.
    14·1 answer
  • A 40 g gold coin is cooled from 50°C to 10°C (CAu is 0.13 J/g-°
    8·1 answer
  • How do you separate a mixture of sodium chloride and potassium trioxonitrateV<br>​
    12·1 answer
  • List 2 similarities and differences between prokaryotic and eukaryotic cells.<br> Will give brain
    6·2 answers
  • Which two have to do with Movement of Galaxies? (pick 2)
    11·1 answer
  • Wrrite any 4 importance of nitrogen​
    9·1 answer
  • When coal is burned to produce electricity, the electrical energy produced is less than the
    13·1 answer
  • Which of the following is a characteristic of a strong base
    12·1 answer
  • Chromium (III) oxide reacts with hydrogen sulfide gas to form chromium (III) sulfide and water. To produce 421 g of cr2s3, how m
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!