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
OlgaM077 [116]
2 years ago
7

How many grams of al2o3 (mm = 101. 96 g/mol) are produced when 91. 7 grams o2 reacts with excess aluminum?

Chemistry
1 answer:
Ronch [10]2 years ago
7 0

Answer:

Explanation:

1. Write down the balanced equation

2. Use molar mass of O2 (32g/mol) divided by the given mass to derive the amount of mols

3. multiply the answer by 2/3 (divide by 3 then multiply by 2), to ensure the mols are in correct proportion

4. Use given molar mass and multiply it by the amount

5. Make sure to use proper significant digits (3 in this case) and units :)

You might be interested in
The number of hydrogen ions would equal the number of hydroxide ions in a solution with a pH of what?
Dafna1 [17]

Seven. It's a neutral pH.

6 0
3 years ago
A ____________ is a large body that moves around a star?
Travka [436]

Answer:

A Planet

Explanation:

The earth for example, is a large body that orbits the sun, our local star

4 0
4 years ago
Read 2 more answers
An atom can be called a particle, but a molecule is never called a particle. True or False ?
ivanzaharov [21]

Answer: False; it contains particles, but that doesn't mean it's a particle itself.

<em>Hope this help. </em>

5 0
4 years ago
Tincture of iodine has antiseptic properties. This solution is made by dissolving.
ser-zykov [4K]

Tincture of iodine has antiseptic properties and is made by dissolving iodine crystals in alcohol.

<h3>What are antiseptics?</h3>

Antiseptics are substance which prevent or stops the growth of microorganisms.

Microorganisms have been known to cause diseases, therefore the application of antiseptics are useful to prevent diseases.

An example of an antiseptic is tincture of iodine.

Tincture of iodine is prepared by dissolving iodine crystals in alcohol.

In conclusion, antiseptics are useful in the prevention of diseases by microorganism. An example of an antiseptic is tincture of iodine.

Learn more about tincture of iodine at: brainly.com/question/3209701

#SPJ1

7 0
2 years ago
DNA contains genes that provide instructions for inherited traits. What is the relationship between the genes and chromosomes?
lara31 [8.8K]

Answer:

Genes are segments of DNA that are located on the chromosomes of each cell.

Explanation:

Chromosomes are basically tightly bundled thingies containing genes, DNA, whatever. Phenotype and genotype have nothing to do with chromosomes, that's just how WE describe them.

5 0
4 years ago
Other questions:
  • The half life for the decay of carbon- is years. Suppose the activity due to the radioactive decay of the carbon- in a tiny samp
    9·1 answer
  • What is nuclear fusion? Write a paragraph.
    5·2 answers
  • which of the following activities could cause liquid molecules to overcome intermolecular attractive forces and become gas molec
    8·1 answer
  • Which group on the periodic table is the most reactive
    15·2 answers
  • For which of the following activities might you want to hire a chemist?
    6·2 answers
  • In the equation below, suppose 11 grams of zinc react with 12 grams of hydrogen chloride to form 16 grams of zinc chloride and a
    6·1 answer
  • Fe(s)+ 2 HC2H3O2(aq) → Fe(C2H3O2)2(aq) + H2(g) Which substance is reduced and which subject is oxidized?
    11·1 answer
  • PLEASE HELP!!!!
    12·2 answers
  • The higher an electromagnetic wave's frequency, the lower its
    7·1 answer
  • Plz answer question 9 in the picture... with an explanation
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!