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
boyakko [2]
2 years ago
14

Which equation obeys the law of conservation of mass?

Chemistry
2 answers:
DanielleElmas [232]2 years ago
9 0

4Fe + 3O2 → 2Fe2O3

i believe this is the answer

Jlenok [28]2 years ago
8 0

Answer:- 4Fe+3O_2\rightarrow 2Fe_2O_3

Explanations:- A balanced equation obeys the law of conservation of mass.

First equation is not balanced as it has two Fe on left side and four Fe on right side.

Second equation is not balanced as it has two O on left side and six O on right side.

Third equation is not balanced as it has one Fe on left side and two fe on right side.

Fourth equation is balanced as it has four Fe and six O on both sides. So, it obeys the law of conservation of mass.

You might be interested in
How do the names of molecular compounds differ from the names of ionic compounds.
34kurt

Long Answer:

Ionic: Cation is named first followed by the anion.

If it's an ionic compound with a transition metal, there are more than one possible ion. Molecular - named with the least electronegative ion first + prefixes are given to both ions to indicate number of atoms in each element.

Short Answer: Ionic compounds- Cation is named first, followed by the anion.

8 0
2 years ago
How do fossils fuels contribrute to air population?
SpyIntel [72]
According to the EPA... If someone burns fossil fuels<span>, the reaction releases nitrogen oxides up and into the atmosphere. This </span>contributes<span> to the creation of smog (sometimes acid rain). The biggest sources of nitrogen oxide emissions are: vehicles, coal power plants, ships, airplanes, and large industrial operations.</span>
7 0
3 years ago
Read 2 more answers
Help! why are chemical equations always balanced?
KengaRu [80]

Answer:

C

Explanation:

The Law of Conservation of Mass states that matter cannot be created or destroyed and must be conserved. I is stating matter cannot be created, which is true. II is saying that matter can only be rearranged/conserved, which again is true. III states matter cannot be destroyed, which is also true. IV is incorrect because it doesn't make sense. Matter does matter.

3 0
2 years ago
The boiling point of water is 100°C. During an experiment, water came to a boil at 97°C according to the thermometer that was be
lara31 [8.8K]

Answer:

The percent error of the thermometer is 3%

Please give me the brainliest if you find this helpful

6 0
3 years ago
Which change of state is shown in the model?
denis23 [38]

Answer:

D

Explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Circle the term that does not belong in each of the following groups: KCl NaCl NaHCO3 MgSO4
    7·1 answer
  • Hydrogen bonds form between molecules containing _________ bonds; the hydrogen bond is between a hydrogen atom of one molecule a
    6·1 answer
  • A student placed 13.5 g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then
    15·2 answers
  • A geological process (2 points)
    14·2 answers
  • How many atoms are in NaHCO3? And please explain how u got the answer.
    10·1 answer
  • calculate the number of grams of magnesium in 50g of magnesium sulfide. Use percentage composition and gravimetric factor.
    8·1 answer
  • 7. From the arteries, blood flows into tiny, narrow vessels called _________________________________________.
    15·2 answers
  • How many grams of NH3 are in 45.9
    12·1 answer
  • Protons + Neutrons = the atomic ?
    13·1 answer
  • Suppose much of an old forest will be used for farmland. A certain portion of the land will be set aside as wildlife habitat. Yo
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!