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
Liula [17]
3 years ago
6

What is the percentage of aluminum in aluminum oxide (al2o3?

Chemistry
2 answers:
Andrej [43]3 years ago
5 0
Al2O3 has 5 atoms present in the molecule. Out of these 5 atoms, 2 of these atoms are Al atoms therefore 2/5= 0.4 which is 40%.

The answer is 40%.
Anuta_ua [19.1K]3 years ago
5 0
Fifty two point ninety three(52.93$

You might be interested in
What is the percent abundance for antimony
alina1380 [7]
Two naturally occurring isotopes of antimony are shown in the pic with their abundance

7 0
3 years ago
A student will measure and record the growth of two flowering plants every day for 28 days. Plant A will be watered and fertiliz
Mekhanik [1.2K]

Answer:

If Plant A grows taller than Plant B

Explanation:

because plant A is being fertilized whereas plant B isn't

8 0
3 years ago
At room temperature (208C) and pressure, the density of air is 1.189 g/L. An object will float in air if its density is less tha
Zina [86]

Total density of filled ball with carbon dioxide gas: \frac{012g+1.0248g}{0.560L} = 2.044g/L

The relationship between mass and volume can be easily determined using density; for example, the mass of a body is equal to its volume multiplied by the density (M = Vd), whereas the volume is equal to the mass divided by the density (V = M/d). The ball filled with carbon dioxide will not float in the air because total density of filled ball is greater than the density of an air. Density of the evacuated ball D = 0.214 g/L

Density of carbon dioxide gas = d_1 = 1.830g/L

Mass of the carbon dioxide gas : 1.830g/L \times 0.560L = 1.0248g

Learn more about Mass and Density here:

brainly.com/question/10821730

#SPJ4

4 0
2 years ago
Describe, in detail, nuclear fission and nuclear fusion. Include what happens in each reaction, the types of atoms involved, the
earnstyle [38]
Answer 1) What is nuclear fission and nuclear fusion? 
Nuclear Fission - It is reaction process when a neutron is made to strike to an atom with a heavy nucleus. It makes the atom release certain number of neutrons from the nucleus, then it splits the parent atom into smaller other atoms.

Nuclear Fusion - It is exactly opposite of nuclear fission. It is a reaction process, where the nucleus of certain light atoms tries to join the nucleus of other lighter atoms together and release large amount of energy.

Answer  2) What happens in these reactions?
 Nuclear Fission -  Usually in these reactions the atoms with heavy nucleus splits up into smaller atoms. Fission means breaking into smaller atoms.

Nuclear Fusion - In this reaction the atoms of several lighter nucleus combines together to form a larger nucleus by releasing a high amount of energy. Fusion means joining/mixing of small atoms to form large atom.

Answer 3) Types of atoms involved?
Nuclear Fission -  Atoms with heavy nucleus like uranium which when bombarded with neutrons can get splitted into smaller atoms of xenon or strontium,etc.

Nuclear Fusion - Atoms including small lighter nucleus combines to form larger  ones. For example, inside the Sun, the small atoms of hydrogen combines to form helium atoms which imparts sun a large amount of heat and light energy.

Answer 4) Types of product produced?
Nuclear Fission - Depending upon the atoms of heavy nucleus undergoing fission the products would be produced. Such as if uranium undergoes fission the products obtained will be different than Plutonium undergoing fission. Although several small by products may be similar.

Nuclear Fusion - This reaction also depending upon the smaller atoms nucleus which undergoes the process of fusion and result into a bigger atom. Example is the fusion of hydrogen atoms in sun and stars.

Answer 5) Practical Uses.
Nuclear Fission - As in this process large amount of energy is released, the major use is done in producing power. Also it's uses are seen in manufacturing of nuclear weapons.

Nuclear Fusion - It is difficult to do fusion reactions, but still we have managed to manufacture hydrogen bombs using this reaction and many researches are going on in the field of magnetism and laser beams.

Answer 6) Limitations.

Nuclear Fission -  The major limitation in using this kind of reaction is because of the generation of radioactive wastes. It is difficult to dispose off the waste generated after the reaction with proper care. It effect remains years after years and are extremely toxic to all living beings.

Nuclear Fusion - It is quite difficult to nuclear fusion reaction on earth as it requires high amount of temperature and pressure. So it is almost impossible to replicate fusion reactions.
3 0
3 years ago
The compounds that has the greatest polarity is?
Zepler [3.9K]

Answer:

CH3

Explanation:

3 0
3 years ago
Other questions:
  • Which element has the lowest atomic mass?
    8·2 answers
  • Which picture shows the correct flow of electrical current
    8·2 answers
  • How many grams of calcium phosphate can be produced when 78.5 grams of calcium hydroxide reacts with excess phosphoric acid?
    8·2 answers
  • How many liters of hydrogen gas are needed to react completely with 50.0 L of chlorine gas at STP ?
    15·1 answer
  • What is the criteria to place an element in a particular group?
    10·1 answer
  • hi:) evaporation is the process by which liquids changes to gas at temperatures lower than boiling point. But why can’t liquids
    9·2 answers
  • Which pair shares the same empirical formula? (
    14·1 answer
  • PLSSS HELP MEEEEEEEE
    6·1 answer
  • What may form when magma comes to the surface?
    7·1 answer
  • Which of the following is true?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!