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
ipn [44]
3 years ago
10

In one of his experiments, Lavoisier placed 10.0 grams of mercury (II) oxide into a sealed container and heated it. The mercury

(II) oxide then reacted in the presence of heat to produce 9.3 grams of mercury. Oxygen gas was another product in the reaction. According to the law of conservation of mass, how much oxygen gas would have been produced?
Chemistry
1 answer:
inysia [295]3 years ago
4 0

Oxygen gas produced : 0.7 g

<h3>Further explanation</h3>

Given

10.0 grams HgO

9.3 grams Hg

Required

Oxygen gas produced

Solution

Reaction⇒Decomposition

2HgO(s)⇒2Hg(l)+O₂(g)

Conservation of mass applies to a closed system, where the masses before and after the reaction are the same

mass of reactants = mass of products

mass  HgO = mass Hg + mass O₂

10 g = 9.3 g + mass O₂

mass O₂ = 0.7 g

You might be interested in
The cycle repeats when the carbon stored in the atmosphere as carbon dioxide gas is taken in.
Rzqust [24]

Answer:

Order of the cycle:

Step -1>>>>Step -4 >>>> Step -3 >>>>> step -2.

Explanation:

<u>Step -1:</u>

Carbon dioxide is taken in by plants during photosynthesis.

<u>Step -4;</u>

The animal eats a plant and uses its carbohydrates for energy.

<u>Step - 3</u>

The animal releases the carbon dioxide back into the atmosphere during respiration.

<u>Step -2</u>

The cycle repeats when the carbon stored in the atmosphere as carbon dioxide gas is taken in.

Therefore, order of the cycle is Step -1>>>>Step -4 >>>> Step -3 >>>>> step -2.

5 0
3 years ago
Read 2 more answers
Gases present in atmosphere are in ionic form true or false​
ANTONII [103]

Answer:

false

Explanation:

Only ionic compounds can dissolate in water.

6 0
3 years ago
Which statement about Niels Bohr’s atomic model is true?
My name is Ann [436]
You have to provide options, otherwise people will not reply to your question.
6 1
3 years ago
Read 2 more answers
ch3)2c(oh)ch2ch3 skeletal structure, Functional groups, compound type &amp; alcohol class if it’s an alcohol
xxTIMURxx [149]

The skeletal structure of an organic compound is an abbreviated representation of its molecular structure, they are quick and easy to draw.

For example, the following image shows the skeletal structure of a compound:

The peaks represent the carbons. We must remember that carbon can have a maximum of 4 bonds.

Now, I will show you how is the structure of this specific compound:

This is ternary alcohol, called 2-methyl-2-butanol. If you see carefully, you will notice that each carbon has 4 bonds. The functional groups present will be OH. The skeletal structure will be:

6 0
1 year ago
Serena mixed two samples together: a gray solid that smells like flowers and a gray solid that smells like bleach. She analyzed
MariettaO [177]

Answer:c

Explanation:

7 0
3 years ago
Other questions:
  • Within the water cycles, where do individual water molecules reside the longest?
    7·2 answers
  • A liquid with weak intermolecular forces will
    11·1 answer
  • a car is traveling 55.0 miles per hour . convert this to meters per second . one miles is equal to 1.61 km
    14·2 answers
  • What quantity, in moles, of oxygen is consumed when 717.4 kJ of energy is evolved from the combustion of a mixture of H2(g) and
    10·1 answer
  • CAN YOU PLEASE HELP ASAP​
    10·2 answers
  • I need help with balancing equations
    9·1 answer
  • By studying a star's spectrum, scientists can work out its chemical make-up and temperature. What instrument do astronomers' use
    6·2 answers
  • Where do the majority of volcanoes occur?
    14·1 answer
  • As part of an investigation, students combined substances in a beaker to observe
    8·1 answer
  • Vanadium v hydroxide formula
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!