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
Thepotemich [5.8K]
3 years ago
6

I need urgent help grade at risk with my chemistry homework!! Please i beg anyone the image is posted and show work if you can

Chemistry
2 answers:
saul85 [17]3 years ago
5 0

Answer:

im only answering because the other person deserves brainliest

xplanation:

Charra [1.4K]3 years ago
4 0

Hey! so I can help you with the beginning!

1.  The ratio of Fe to O2 is 4:3 so since they tell you that you have 56 moles of Fe, all you have to do is plug in the information. So 56/4 = 14 and 3 x 14 = 42. To conclude, the answer for number one is 42 moles of O2.

2.Same thing from #1 except the ratio is 4:2 (since we are now talking about Fe2O3) so you divide 56/4 and get 14 so you multipy 2x 14 which gives you 28. To conclude, the answr to numbner 2 is 28 moles of Fe2O3.

3. On this question it is asking for grams, not moles, so we have to look on our periodic table and look for the atomic mass of Fe. To start off the problem you are going to have to find the amount of moles of Fe needed to react with 27 moles of O2 so the ratio will be 4:3 so you need to divide 27/3 which gives you 9. Multiply 9x4 and that gives you 36 moles. DONT FORGET TO CONVERT TO GRAMS. The final answer will be 2,010.42 g of Fe after you multiply 36 x 55.845 g (Fe atomic weight.

I would help you more but I have school tomorrow as well... I help this helped though.

You might be interested in
Juan inflates a balloon and then releases its end to let the balloon go free as air comes out. The balloon then flies around the
MArishka [77]
Here is the correct option: According to Newton's third law of motion, the balloon is pushed forward as the air is forced out.  Newton's third law of motion states that for every action there is an equal and opposite reaction. This means that in every interaction, there is a pair of force that is acting on the interacting objects, the size of the force on the first object is equal to the size of the force on the second object.
5 0
3 years ago
Read 2 more answers
In the citric acid cycle, ATP molecules are produced by _____. In the citric acid cycle, ATP molecules are produced by _____. su
monitta

Answer:

substrate-level phosphorylation

Explanation:

Substrate-level phosphorylation is the metabolic reaction which results in formation of energy currency molecules, ATP or GTP by direct transfer of a phosphoryl group to the ADP or GDP from the another phosphorylated compound.

<u>In citric acid cycle, Succinyl-CoA in the presence of succinyl-CoA synthase is converted to succinate. Condensation reaction (Substrate-level phosphorylation) of GDP and Pi takes place which results in the formation of GTP.</u>

3 0
3 years ago
Under which conditions will sugar most likely dissolve fastest in a cup of water?
zheka24 [161]
If the cup of water contained hot water. Sugar will dissolve a lot slower if it was in room temperature and even slower if it was in cold water.
3 0
3 years ago
The symbol for hydronium ion concentration is
Likurg_2 [28]
<span>The symbol for hydronium ion concentration is H+. </span><span>There are quite a few relationships between [H+] and [OH−] ions. And because there is a large range of number between 10 to 10</span><span>-15</span><span> M, the pH is used. pH = -log[H+] and pOH = -log[OH−]. In aqueous solutions, </span><span>[H+ ][OH- ] = 10-14. From here we can derive the values of each concentration.</span>
3 0
3 years ago
When the following reaction comes to equilibrium, will the concentrations of the reactants or products be greater? Does the answ
Nutka1998 [239]

Answer:

At equilibrium, the concentration of the reactants will be greater than the concentration of the products. This does not depend on the initial concentrations of the reactants and products.

Explanation:

The value of Kc gives us an idea of the extent of the reaction. A big Kc (Kc > 1) means that in the equilibrium there are more products than reactants, and the opposite happens for a small Kc (Kc < 1). The equilibrium is reached no matter what the initial concentrations are.

The value of the equilibrium constant is relatively SMALL; therefore, the concentration of reactants will be GREATER THAN the concentration of products. This result is INDEPENDENT OF the initial concentration of the reactants and products.

4 0
3 years ago
Other questions:
  • Your chemistry experiment requires you to mix two chemicals in a test tube. To safely observe the chemical reaction you should:
    12·1 answer
  • Which gas law describes the relationship between volume and pressure at a constant temperature?
    6·1 answer
  • Which of the following buffer systems would be the best choice to create a buffer with pH 9.10?
    11·1 answer
  • Write the atomic number, atomic mass, number of protons, electrons and neutrons for the first five elements
    7·1 answer
  • A 0.1018 g sample of organic compound with a molar mass of 225.4 g/mol was
    5·1 answer
  • What is the pH of a solution that contains 0.009 grams of oxalic acid in 100<br> mL of water?
    9·1 answer
  • The relationship between the volume and mass of an element is
    8·1 answer
  • Give three examples of energy traveling in waves
    14·1 answer
  • Convert 2.55 moles of water to grams.
    10·1 answer
  • What products would you expect from the reaction of ammonia and sulfuric acid in aqueous solution
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!