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
Alina [70]
3 years ago
14

How many moles of mercury(II) oxide, HgO, are needed to pro- duce 125 g of oxygen, O2?

Chemistry
1 answer:
prisoha [69]3 years ago
6 0

Write out the balanced equation:

2HgO ----> 2Hg + O2

Convert grams of O2 to moles:

(125g of O2 * 1 mole)/ 32g of O2 = 3.91

Look at the ratio with HgO to O2:

2:1

Therefore:

3.91 * 2 = 7.82

You might be interested in
The phase that is most likely to occur at high temperatures and high pressures is:
kogti [31]
WELL IT DEPENDS ON WHAT IT DOING IT TO BUT TRY SOLID
6 0
3 years ago
What does the 2 mean in the formula 5Mg3(PO4)2? There are two elements in magnesium phosphate. There are two molecules of magnes
frozen [14]

Answer: In this compound, phosphorous and oxygen act together as one charged particle, which is connected to magnesium, the other charged particle.

Explanation:

4 0
2 years ago
Czemu mosiądz czerwony jest bardziej miekki niż żółty​
Gre4nikov [31]
??? Whqjjwwjjsjejaooaka
7 0
2 years ago
Redox 1/2 reaction Cu(s) + 2 AgC2H3O2(aq) = Cu(C2H3O2)2(aq) + 2 Ag(s)
Anna11 [10]

Explanation:

 Reaction:

              Cu  +     2AgC₂H₃O₂     →    Cu(C₂H₃O₂)₂    +     2Ag

The problem is to split the reaction into oxidation and reduction halves:

 The oxidation half is the sub-reaction that undergoes oxidation

  The reduction half is the one that undergoes reduction:

The ionic equation:

 Cu   +  2Ag⁺   +   2C₂H₃O₂⁻   →   Cu²⁺  +  2C₂H₃O₂⁻   +  2Ag

Oxidation half:

     Cu →  Cu²⁺ + 2e⁻

 

Reduction half:

    2Ag⁺ + 2e⁻ → 2Ag

C₂H₃O₂⁻ is neither oxidized nor reduced in the reaction.

learn more:

Oxidation state brainly.com/question/10017129

#learnwithBrainly

4 0
3 years ago
What is the rarefraction of a longitude wave
kvv77 [185]

Answer:

it is a transverse wave. Does that help?

5 0
2 years ago
Other questions:
  • 2. Oxygen can combine with carbon to form two compounds, carbon monoxide, and carbon dioxide. The ratio of the masses of oxygen
    5·1 answer
  • Based on your knowledge of how the greenhouse effect works, why does the level of carbon dioxide affect the global temperature?
    14·2 answers
  • AGHHHHHH SOMEONE HELP MEEEEEEEEEEE I WILL RATE BRAINLIEST IF SOMEONE JUST HELPS MEEEEE
    14·1 answer
  • If 0.5 gramd of hcl is dissolved in 500 ml of solution what is the ph
    9·1 answer
  • List four types of molecules important for cell processes
    11·2 answers
  • Write the electron configuration when Sulfur gains two electrons
    10·1 answer
  • what sentence describes all atoms of one element A. They have the same number of isotopes B. They have the same properties C. Th
    6·1 answer
  • If 1.0g of each of the following gases is stored at STP, which one would occupy the greatest volume? CH4, CO, H2O, NO, or will t
    8·1 answer
  • Balancing equations help!!
    11·1 answer
  • Students are investigating the differences in open and closed systems. They heated 2 containers of water. They recorded their re
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!