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
Harrizon [31]
3 years ago
6

I’m stuck on this problem.. please help!

Chemistry
1 answer:
inysia [295]3 years ago
5 0

Answer:

1.72 mol

Explanation:

Given data:

Mass of NaCl = 200 g

Moles of Na₂O formed = ?

Solution:

Chemical equation:

MgO + 2NaCl   →    Na₂O + MgCl₂

Number of moles of NaCl:

Number of moles = mass/ molar mass

Number of moles = 200 g/ 58.44 g/mol

Number of moles = 3.422 mol

Now we will compare the moles of NaCl with Na₂O.

                            NaCl       :          Na₂O

                              2           :               1

                            3.422        :           1/2×3.422 = 1.71 mole

Approximately equal to 1.72 so option A is correct.

You might be interested in
Many towns in flood-prone areas are surrounded by___ that are built to hold back rising water.
xxTIMURxx [149]

Answer:

Flood barriers

Explanation:

Many towns in flood-prone areas are surrounded by flood barriers that are built to hold back rising water during seasonal highs.

  • Flood barriers are water resistant walls that are used to prevent breaking water during a high period of inundation from their channels.
  • They are usually vertical artificial structures which can be temporary or permanent.
  • They help to hold or contain the flood water during the high season.
  • These walls prevents flood plains and other nearby areas from getting flooded during the rainy season.
8 0
3 years ago
By studying fossils, scientists get an idea of ....
Tema [17]
<span>By studying fossils, scientists get an idea of what the organisms looked like, what they ate, and how they lived. </span>
6 0
3 years ago
Which of the following represent a mixture?
7nadin3 [17]
The answer is B NaCI solid
6 0
3 years ago
How is the information about cats found in myths and fairy tales and legends different from information gathered through science
forsale [732]
Scirnce uses a method of testing to declare rules or facts. myth and fairy tales have no way of being tested. cats are a physical creature we can see, test, and observe. a mythical idea canny be tested. for example: mermaids cannot be tested as we have none to observe.
5 0
4 years ago
Why don’t we include the mass of an atoms electrons in the atomic mass?
Daniel [21]

Because Electrons have a negative charge

8 0
4 years ago
Other questions:
  • Which interaction is a direct result of chemical weathering?
    15·2 answers
  • An oscilloscope is a machine that gives a picture of a sound wave. Low-pitched sounds have wide waves, and high-pitched sounds h
    10·2 answers
  • POSSIBLE POINTS: 33.33
    12·2 answers
  • The higher the altitude the colder the temperature? true or false.
    13·2 answers
  • Which term describes free-floating, photosynthetic microorganisms in the oceans that are important for producing oxygen? A. phyt
    5·1 answer
  • The concentration of glucose inside a cell is 0.12 mM. Outside the cell the concentration of glucose is 12.9 mM. Calculate the c
    15·1 answer
  • A group of electrons revolving around a nucleus forms an electron ____
    8·1 answer
  • How many moles of hydrogen are in a 14 gram sample of propane gas?
    6·1 answer
  • How many moles are in 17.0 grams of H2O2?
    8·2 answers
  • I need halp with this one
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!