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
STatiana [176]
3 years ago
13

How many grams of Al2O3 are produced from 4.2 grams of of Al reacting with O2?

Chemistry
1 answer:
butalik [34]3 years ago
3 0

Answer:

1400

Explanation:

You might be interested in
A sample of water at 100°C is converted to steam after absorbing 820 kJ of heat. How grams of H2O are contained in the sample? A
Varvara68 [4.7K]
Since water is already at 100<span>°C all the energy is used to evaporate it. 
Now we can calculate how many </span>mols of water are evaporated with 820kJ.
N= \frac{820}{41} =20 mol
We calculated that we got 20 mols of water evaporated. Now, all we have to do is find how many grams is a mol of water. Molar mass of water is <span>20.16 g/mol.
</span>The final answer is:
m=20*20.16=403.2g




7 0
3 years ago
How is the structure of atoms altered during fission and fusion?
Dmitriy789 [7]
At first sight it doesn't bode well. The key is in how firmly the protons and neutrons are held together. In the event that an atomic response produces cores that are more firmly bound than the firsts then vitality will be created, if not you should place vitality into make the response happen.
6 0
3 years ago
A fish company delivers 22 kg of salmon, 5.5 kg of crab and 3.48 kg of oysters to your seafood restaurant. What is the mass, in
Rainbow [258]

Answer:

Mass of sea food = 30.98 Kg

Mass of sea food in pound = 68.31 lbs

Explanation:

Salmon, crab and oysters all are sea food.

Mass of sea food = Mass of salmon + Mass of crab + mass of oyster

Mass of salmon = 22 kg

Mass of crab = 5.5 kg

Mass of oysters = 3.48 kg

Mass of sea food = Mass of salmon + Mass of crab + mass of oyster

                             = 22 + 5.5 + 3.48

                             = 30.98 Kg

1 Kg = 2.205 lbs

Therefore, 30.98 kg = 30.98 × 2.205

                                 = 68.31 lbs

8 0
2 years ago
Which of these pH numbers indicates the highest
Korvikt [17]
<span>(1) 5 because it it below 7 and anything below ph 7 is acidic! Hope this helps you!! =')</span>
7 0
3 years ago
Read 2 more answers
When do acids follow the same naming conventions as other covalent componds
Valentin [98]
Jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjgccccccccccccccccccccc
3 0
2 years ago
Other questions:
  • Dr. Ray has developed a new way to remove oil from wetlands in the event of an oil spill. To test his new process, Dr. Ray build
    8·2 answers
  • Can someone help me with this please!
    13·1 answer
  • HELP!!!
    13·2 answers
  • What happens when molten material is heated from Earth’s core?
    7·1 answer
  • Why is 1-methylhexane not a legitimate name for a compound?
    10·1 answer
  • How many significant figures are in 31400
    5·1 answer
  • Why might calcium also be called the calcium of citric acid
    9·1 answer
  • Electromagnetic waves can transfer with or without blank
    9·2 answers
  • How many molecules are in 85g of silver nitrate?
    12·1 answer
  • How many molecules of water are in 1.8 moles of water
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!