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
dybincka [34]
3 years ago
13

For this reaction: 4 Al + 3O2 = 2 Al2O3

Chemistry
1 answer:
MariettaO [177]3 years ago
7 0
0.347 mols, working out shown on photo

You might be interested in
Refer to your periodic table:
Mazyrski [523]

iondine

Explanation:

bromine has 185pm, astatine haa 200, iondine has 140 and lastly fluorine has 147. so iondine has the smallest atomic radius

6 0
3 years ago
Why do non-metal aroms form covalent bonds e.g. H2O​
Oksana_A [137]

Answer:

Covalent bonds usually occur between nonmetals. For example, in water (H2O) each hydrogen (H) and oxygen (O) share a pair of electrons to make a molecule of two hydrogen atoms single bonded to a single oxygen atom. ... Covalent compounds tend to be soft, and have relatively low melting and boiling points.

7 0
2 years ago
Why is it important to protect the ozone layer
Nimfa-mama [501]
If we don’t protect the ozone layer then it will start to seriously damage earth and we will all eventually die out.
7 0
3 years ago
Read 2 more answers
Is the sun typical of these nearby stars
marshall27 [118]
No the sun is the biggest star in the universe.
8 0
3 years ago
Calculate a reasonable amount (mass in g) of your unknown acid to use for a titration. You will want about 30 mL of titrant to g
Vinil7 [7]

Answer:

"0.60 g" is the appropriate solution.

Explanation:

The given values are:

Volume of base,

= 30 ml

Molarity of base,

= 0.05 m

Molar mass of acid,

= 400 g/mol

As we know,

⇒  Molarity=\frac{Number \ of \ moles \ of \ base}{Number \ of \ solution}

On substituting the values, we get

⇒           0.05=\frac{Number \ of \ moles \ of \ base}{30\times 10^{-3}}

⇒  Number \ of \ moles \ of \ base=0.05\times 30\times 10^{-3}

⇒                                             =1.5\times 10^{-3}  

hence,

⇒  Moles \ of \ acid=\frac{Mass \ of \ acid}{Molar \ mass \ of \ acid}

On substituting the values, we get

⇒  1.5\times 10^{-3}=\frac{Mass \ of \ acid}{400}

⇒  Mass \ of \ acid=1.5\times 10^{-3}\times 400

⇒                         =0.60 \ g

8 0
3 years ago
Other questions:
  • Polar solvents dissolve _____ solutes and non-polar solvents _____ solutes.
    6·2 answers
  • Describe the path of a carbon atom through the process of cellular respiration? PLEASE HELP!!!!
    6·1 answer
  • Luke and Sian want to plant a vegetable garden in their yard. A soil testing kit measures the soil pH at 5.0, but the lettuce th
    15·1 answer
  • Calculate moles of naoh 38.18ml of 0.550M
    6·1 answer
  • Which electron are the valence electron of the atom
    7·1 answer
  • Why might the percent yield of copper produced be less than 100% of the expected amount?
    5·1 answer
  • How many milliliters of an aqueous solution of 0.222 M manganese(II) iodide is needed to obtain 9.57 grams of the salt?​
    9·1 answer
  • The repeating subunits that are responsible for the chance of a crystal are know as
    8·1 answer
  • How is the atomic radius calculated?​
    7·1 answer
  • A 10.4 g sample of CaSO4 is found to contain 3.06 g of Ca and 4.89 g of O. Find the mass of sulfur in a sample of CaSO4 with a m
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!