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
morpeh [17]
3 years ago
14

Balance the chemical equation. ___Mg + ___Fe2O^3 -> ___MgO + ___Fe

Chemistry
1 answer:
VMariaS [17]3 years ago
8 0

Answer:

3Mg + Fe₂O₃ → 3MgO + 2Fe.

Explanation:

  • To balance the equation, you should apply the law of conservation of mass for the equations.
  • The law of conservation of mass states that the no. of each atom is equal in both sides (reactants and products).
  • The balanced equation is:

<em>3Mg + Fe₂O₃ → 3MgO + 2Fe.</em>

<em></em>

That 3.0 mole of Mg react with 1.0 mole of Fe₂O₃ to produce 3.0 moles of MgO and 2.0 moles of Fe.

  • The no. of all atoms is the same in both of reactants and products side.

Mg (3), Fe (2), and O (3).

You might be interested in
Which phrase is the best description of weathering?
Anit [1.1K]
I just had this question it is c
8 0
3 years ago
The capacity of a muscle to continue contracting over a period of time without fatigue is called:
siniylev [52]
<span>B. muscular endurance

</span>The capacity of a muscle to continue contracting over a period of time without fatigue is called muscular endurance.
NOT:
A. muscular strength. 
<span>C. cardiovascular endurance. </span>
<span>D. power.</span>
6 0
3 years ago
19. Which of the following best describes the role of the spark from the spark plug in an automobile engine?
sergey [27]

The role of a spark plug is to supply some of the energy of activation for the combustion reaction.

<u>Explanation:</u>

  • A Spark plug is a tiny bolt of lightning in which a spark of electricity is emitted across a gap creating the ignition of the combustion chamber thereby starting the engine. By putting an engine piston in motion we can power up which produces a smooth burn of the compressed air-fuel mixture.
  • An electrical device that fits into the cylinder head and ignites compressed aerosol gasoline by an electric spark. They have an insulated electrode connected to a coil that ignites thereby producing sparks.
  • The spark plug works as a heat exchanger. They tend to pull unwanted thermal energy from the combustion chamber and heat is transferred to the engine's cooling system. Thus they supply some of the energy for the activation of engines.
4 0
3 years ago
What type of bond does sodium and bromine form?
vitfil [10]
Sodium is a metal and bromine is a nonmetal so they form an ionic compound
nonmetals and nonmetals form covalent compounds
7 0
2 years ago
What is true about all chemical equations?<br> Links are reported
Vanyuwa [196]

Answer:Your answer is A

Explanation:

Hope this helps ツ

6 0
3 years ago
Other questions:
  • For some reaction carried out at constant atmospheric pressure and at a constant temperature of 25◦C, it is found that ∆H = −38.
    9·1 answer
  • Concentrations expressed as a percent by mass are useful when the solute is a _____.
    11·2 answers
  • How many hydrogen atoms are present in a hydrocarbon chain of five carbon atoms with two double bonds and two single bonds?
    8·1 answer
  • Moles/particles please help idk how to answer/start
    10·2 answers
  • What are the defining characteristics of matter
    13·2 answers
  • The atomic number of an element best corresponds to which of the following?
    14·1 answer
  • What is the source of water as a reactant in photosynthesis
    5·2 answers
  • Why this chemical equation 3P4 + 10O2 = 4P2O5 + P4 is wrong?
    15·1 answer
  • Describe how you would find out whether copper(ii) oxide was a catalyst for the decomposition of hydrogen peroxide solution. You
    9·1 answer
  • For the reaction S + O2 →SO2 a. Write the balanced chemical equation b. if 6.3 g of S is reacted with 10.0 mole of O, show by ca
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!