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
Nimfa-mama [501]
3 years ago
10

The formula for rust can be represented by fe2o3 how many moles of fe are present in 25.7 g

Chemistry
1 answer:
leonid [27]3 years ago
7 0
To calculate the number of moles, simply take the ratio of mass and molar mass. The molar mass of Iron (Fe) is equal to 55.85 g/mol.Therefore the total number of moles is:
moles Fe = 25.7 g / (55.85 g / mol)

moles Fe = 0.46 mole
You might be interested in
If you were givin 2.50 moles of.sodium bromide, how many grams of salt do you have
mihalych1998 [28]

Answer: 257.23

Explanation:

7 0
3 years ago
Which of the following is not a mixture?
MakcuM [25]

Answer:

Sugar

Explanation:

Mixtures are substances that made of two or more elements or other substances that are joined together by physical methods and when mixed can be also be separated by physical method into the original individual elements.

Air is a mixture of gases such as oxygen, nitrogen, carbon dioxide and rare gases. When an amount of air is collected, its constituents can be collected separately.

Likewise 7 up and sea water

Sugar is a compound made of carbon, hydrogen and oxygen, when sugar is decomposed, it's original constituents are not recovered but sugar is decomposed into carbon dioxide and water

4 0
3 years ago
I need to write down like meanings in those words. Please help!!
ser-zykov [4K]

Answer:

Bilateral: When something is bilateral it has two sides or it affects both sides of something. Discussions between two political parties are called bilateral because both sides get to share their views. Bilateral comes from Latin: bi means "two" and lateralis means "belonging to the side."

Endotherm: is an organism that maintains its body at a metabolically favorable temperature, largely by the use of heat set free by its internal bodily functions instead of relying almost purely on ambient heat

Subspecies: In biological classification, the term subspecies refers to one of two or more populations of a species living in different subdivisions of the species' range and varying from one another by morphological characteristics. ... In the wild, subspecies do not interbreed due to geographic isolation or sexual selection

Arthropod: Arthropoda, such as an insect, spider, or crustacean.

Micrometer: an instrument used with a telescope or microscope for measuring very small distances. 2 : an instrument having a rod moved by fine screw threads and used for making exact measurements. micrometer.

Hypothermia: Hypothermia is a potentially dangerous drop in body temperature, usually caused by prolonged exposure to cold temperatures. The risk of cold exposure increases as the winter months arrive. But if you're exposed to cold temperatures on a spring hike or capsized on a summer sail, you can also be at risk of hypothermia.

Polymorph: Polymorphism is the ability of a substance to crystallize into different crystalline forms. These crystalline forms are called polymorphs or crystalline modifications. Polymorphs have the same liquid or gaseous state but they behave differently in the solid state.

Hope this helped!!!

3 0
3 years ago
Whats the periodic table in order?
Liula [17]
The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. The rows are called periods.

hope this helps!

6 0
3 years ago
Read 2 more answers
Refer to the activity series chart and determine which of the following displacement reactions can occur.
Citrus2011 [14]
<span>Among the choices provided, the answer is letter C, CuSO4(aq) + Fe(s) → FeSO4(aq) + Cu(s) since Iron(Fe) is higher up on the action graph and is, along these lines, more responsive than Copper(Cu). Because of this, Iron can supplant Copper in that substance equation. </span>
4 0
3 years ago
Other questions:
  • Which of the following is a solution? <br> Steel <br> Milk <br> Plastic <br> Water
    9·1 answer
  • Which of the following is a trend in the periodic table from top to bottom?
    11·2 answers
  • ) In the Deacon process for the manufacture of chlorine, HCl and O2 react to form Cl2 and H2O. Sufficient air (21 mole% O2, 79%
    11·1 answer
  • When electrons are removed from the outermost shell of a calcium atom becomes
    11·1 answer
  • What is the standard unit of density?
    14·1 answer
  • What chemical formulas represents oxygen gas??
    6·2 answers
  • Is the path of electrons orbital or reactive?
    10·1 answer
  • Hhhhhhhhhhhhhhhhhhhhhhhhheeeeeeeeeelpppppppppppp
    12·1 answer
  • In what way is the Moon like the Earth?
    9·1 answer
  • Continuing from the last question, what is the new pressure inside the container? Hint: Did we use up all of the reactants?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!