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
Sedaia [141]
2 years ago
7

FeS2---SO2---SO3---H2SO4---Na2S

Chemistry
1 answer:
zubka84 [21]2 years ago
6 0
Im so confused this is the second one today
You might be interested in
How do I do question number 3? And what is the answer?
shutvik [7]

Answer:

60.02 g.

Explanation:

  • It is clear from the balanced equation:

<em>Mg + 2HCl → MgCl₂ + H₂. </em>

that 1.0  mole of Mg reacts with 2.0 moles of HCl to produce 1.0 mole of MgCl₂ and 1.0 moles of H₂.

  • 20.0 g of Mg reacts with excess HCl. To calculate the no. of grams of HCl that reacted, we should calculate the no. of moles of Mg:

<em>no. of moles of Mg = mass/atomic mass</em> = (20.0 g)/(24.3 g/mol) = 0.823 mol.

  • From the balanced equation; every 1.0 mol of Mg reacts with 2 moles of HCl.

∴ 0.833 mol of Mg will react with (2 x 0.833 mol = 1.646 mol) of HCl.

<em>∴ The mass of reacted HCl = no. of moles x molar mass</em> = (1.646 mol)(36.46 g/mol) = <em>60.02 g.</em>

3 0
3 years ago
Unsur senyawa CaCO3 adalah
ella [17]
It is caco3  ok  thats the answer
7 0
2 years ago
One of the signs of a chemical reaction is taking place
GalinKa [24]

One sign of a chemical reaction is that gas is being created.

4 0
3 years ago
Read 2 more answers
Aides in the burning of materials. Needed for humans to breathe.
Veseljchak [2.6K]

Answer:

Oxygen.

Explanation:

Oxygen is a chemical element that aides in the burning of materials and it is needed for humans to breathe.

Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP). During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP). Therefore, the intermediary products are produced at the glycolysis and citric acid cycle stage through the breathing of oxygen used to obtain energy from the food ingested.

Hence, all cells in living organisms require oxygen and glucose to release energy.

3 0
2 years ago
Describe what happens if you change your number of electrons in an atom
brilliants [131]
If you can a number of electrons in a atom you will get a ion of the element
6 0
3 years ago
Other questions:
  • How many neutrons are in an atom of molybdenum-96 (Mo-96)?
    12·1 answer
  • Explain how a mummy decreases in mass from 200 to 170 kg
    8·1 answer
  • What is the molarity of a 0.25-liter solution containing 52 grams of HBr? (1 point)
    12·1 answer
  • Please help which one is it
    8·2 answers
  • Which list ranks the gasses in the correct order from the
    10·2 answers
  • Write the formula for the binary compound iron (III) oxide. (a)FeO , (b)Fe(III)O (c),Fe3O2 ,(d)Fe2O3
    5·1 answer
  • Cual es la diferencia entre un volcán de verdad y uno hecho casero
    10·1 answer
  • Which word is the longest word in chemistry?​
    8·1 answer
  • Calculate the number of moles in 75 g of Glucose
    10·1 answer
  • Calculate the percentage difference in the fundamental vibrational wavenumbers of 23Na35Cl and 23Na37Cl on the assumption that t
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!