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
Mariulka [41]
3 years ago
15

Consider the unbalanced equation for the oxidation of aluminum. _Al + _O2 ------> _Al2O3 Which sequence of coefficients shoul

d be placed in the blanks to balance this equation? * 2 points 2,3,1 1,3,2 4,3,2 3,2,3
Chemistry
1 answer:
Nimfa-mama [501]3 years ago
6 0

Answer:

4Al + 3O2-> 2Al2O3 :))))

You might be interested in
1. If you have a sample of gas at a pressure of 16 atm, what will the pressure be if the volume is halved?
vagabundo [1.1K]

Answer:

1. The pressure will be 32 atm, twice the initial pressure.

2. The pressure will be 1.83 atm, one third of the initial pressure.

Explanation:

Boyle's law is one of the gas laws that relates the volume and pressure of a certain quantity of gas kept at a constant temperature.

This law says that "The volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure." This means that if the pressure increases, the volume decreases, while if the pressure decreases, the volume increases.

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

or P * V = k

Ahora es posible suponer que tienes un cierto volumen de gas V1 que se encuentra a una presión P1 al comienzo del experimento. Si varias el volumen de gas hasta un nuevo valor V2, entonces la presión cambiará a P2, y se cumplirá:

P1*V1=P2*V2

1. In this case:

  • P1= 16 atm
  • V1
  • P2= ?
  • V2= V1÷2= \frac{V1}{2} because the volume is halved.

So:

16 atm*V1= P2* \frac{V1}{2}

Solving:

\frac{16 atm*V1*2}{V1}=P2

16 atm*2= P2

32 atm= P2

<u><em>The pressure will be 32 atm, twice the initial pressure.</em></u>

2. Now

  • P1= 5.5 atm
  • V1
  • P2= ?
  • V2= V1*3 because the volume is tripled.

So:

5.5 atm*V1= P2* V1*3

Solving:

\frac{5.5 atm*V1}{3*V1}=P2

\frac{5.5 atm}{3}= P2

1.83 atm= P2

<u><em>The pressure will be 1.83 atm, one third of the initial pressure.</em></u>

7 0
3 years ago
Which of the following is not a way in which humans direct
Pie

Answer:

its d

Explanation:

5 0
4 years ago
The structure of 3-propylpentane is best described as
victus00 [196]
The correct answer is b
7 0
3 years ago
Read 2 more answers
What is the balanced chemical equation for the reaction of aqueous sodium hydroxide and sulfuric acid?
Andrews [41]

Answer:

H2SO4 + 2(NaOH) -----> Na2SO4 + 2(H2O).

Explanation:

6 0
3 years ago
In what ratio will the iron iii ion and the oxide ion form an ionic compound
Mice21 [21]
The oxidation state of iron may be 2,3 or 6 and the most common is 3 & this is our case, Fe^3+ can react with Oxygen (O2), which have fixed oxidation state (2), to form Fe2O3.
Two ions of iron and 3 ions of Oxygen with 2:3 ratio.
3 0
3 years ago
Other questions:
  • Pure acetic acid (hc2h3o2) is a liquid and is known as glacial acetic acid. calculate the molarity of a solution prepared by dis
    12·2 answers
  • Which of the following is an example of a renewable energy source? Select the correct answer below. A. oil B. natural gas C. sol
    8·2 answers
  • How does most of the water in the water cycle move from lakes and rivers directly back into the atmosphere?
    14·2 answers
  • What intermolecular force is responsible for the fact that ice is less dense than liquid water? what intermolecular force is res
    8·1 answer
  • Please help<br><br> 15 points
    6·1 answer
  • Calculate the density of a substance that has a mass of 250g and a volume of 50. Ml
    12·1 answer
  • A solution has a pH of 12. This solution is:
    7·1 answer
  • an ice cube has a mass of 25 grams. the ice cube is placed in a glass and melts. What is true about the ice cube?
    7·1 answer
  • A student increases the temperature of a 200 cm3 balloon from 33degrees C to 47degrease C. What will the new volume of the ballo
    14·2 answers
  • Describe molecules movement for a liquid,gas?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!