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
What are four chemical and physical properties of phosphorus?
DedPeter [7]

Answer:

Properties: The melting point of phosphorus (white) is 44.1°C, boiling point (white) is 280°C, specific gravity (white) is 1.82, (red) 2.20, (black) 2.25-2.69, with a valence of 3 or 5. There are four allotropic forms of phosphorus: two forms of white (or yellow), red, and black (or violet).Oct 7, 2019

Atomic Number: 15

Atomic Weight: 30.973762

Explanation:

: )

8 0
2 years ago
Read 2 more answers
Show me the periodic table
yawa3891 [41]
I think this is what you wanted, so good luck!

8 0
3 years ago
How many milliliters of 0.02 M HCl are needed to react completely with 100 mL of 0.01 M NaOH?
serious [3.7K]
The reaction of HCl and NaOH is HCl + NaOH = NaCl + H2O. So the mole number of HCl and NaOH is equal. So the volume of HCl =0.01*0.1/0.02=0.05 L =50 ml. So the answer is D).
3 0
3 years ago
Read 2 more answers
What is one way that light differs from sound?
krek1111 [17]
The speed that they travel
6 0
3 years ago
How does the sun energy affect the movement of global winds
Harrizon [31]
The sun affects the movement of global winds by heating up the water at Equator

I hope that the answer is correct
8 0
3 years ago
Read 2 more answers
Other questions:
  • Plz answer #4 <br><br> Best answer will get BRAINLIEST!!!
    9·2 answers
  • A rectangular box has a length of 12 cm, a width of 20 cm, and
    7·1 answer
  • 12.) Which type of force is stronger?<br> A)intermolecular forces<br> B)intramolecular forces
    7·2 answers
  • A temperature of –25°C is equivalent to: Question 2 options: 25 K. 248 K. –25 K. 298 K.\
    9·1 answer
  • Skill and
    15·1 answer
  • Melvin is exploring the different kinds of changes that can happen to substances. After reading about the kinds of changes that
    13·2 answers
  • Why is ba(cn)2 soluble
    7·1 answer
  • How many grams of H2O can you make with 120g of O2. <br> Unbalanced equation is: H2 + O2 -&gt; H2O
    7·1 answer
  • Pa help po science po​​
    5·1 answer
  • Which compound when dissolved in water, will have the lowest freezing point?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!