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
Ira Lisetskai [31]
2 years ago
12

How do you balance: Al+Fe3O4=Al2O3+Fe ?

Chemistry
2 answers:
Keith_Richards [23]2 years ago
4 0

Answer:

8Al + 3Fe3O4 → 4Al2O3 + 9Fe

Explanation:

liraira [26]2 years ago
3 0

Answer:

8Al+3Fe3O4=4Al2O3+9Fe

You might be interested in
Why does soap decrease the surface tension of water?
e-lub [12.9K]

Answer:

Soap decreases surface tension by changing the way water behaves on the surface. Hard and soft water react differently when soap is added to them.

Explanation: i think it is this

8 0
2 years ago
In a ceiling fan, N, electrical energy is converted to M, Kinetic energy. Some of the energy is "wasted" as heat. What is someth
Kruka [31]

Answer: It's D

Explanation:

I just did this question and i picked C but it's actually D

6 0
3 years ago
Read 2 more answers
REALLY NEED HELP!!! Chemistry
kicyunya [14]

Answer:

C.) 2

Explanation:

The pH equation is:

pH = -log[H⁺]

In this equation, [H⁺] is the molarity of the acid. In this case, the acid is HCl. Molarity can be found using the equation:

Molarity (M) = moles / volume (L)

Since you were given moles and volume, you can find the molarity of HCl.

Molarity = moles / volume

Molarity = 0.01 moles / 1.00 L

Molarity = 0.01 M

Now, you can plug the molarity of the acid into the pH equation.

pH = -log[H⁺]

pH = -log[0.01]

pH = 2

3 0
2 years ago
A 15.00 % by mass solution of lactose (C 12H 22O 11, 342.30 g/mol) in water has a density of 1.0602 g/mL at 20°C. What is the mo
Alik [6]

Answer:

22.82M

Explanation:

342.3g/mol is présent in 1000

what about in 15??

( 342.3g/mol × 1000 ) ÷ 15

3 0
2 years ago
If 5.0 g of copper metal reacts with a solution of silver nitrate, how many grams of silver metal are recovered?
sukhopar [10]

Answer:

16.9g

Explanation:Cu+2AgNO3→2Ag+Cu(NO3)2  

Cu will likely have a +2 oxidation state. It is higher in the activity series than Ag, so it is a stronger reducing agent and will reduce Ag in a displacement reaction. Then you need to balance the coefficients knowing than NO3 is -1 and Ag is +1.

Then to calculate the theoretical yield you need to compare moles of the reactants:

m(Cu)=5g

M(Cu)=63.55

n(Cu)=5/63.55=0.0787

By comparing coefficients you require twice as much silver: 0.157mol

n(Ag)=0.157

M(Ag)=107.86

m(Ag)=0.157x107.86=16.9g

Hence, the theoretical yield of this reaction would be 16.9g

3 0
2 years ago
Other questions:
  • I need help !!!!!!!!!!! Plz
    9·1 answer
  • Which organ or organs produce estrogen and progesterone?
    9·2 answers
  • Is the solution containing 0.20 M Pb2 and 0.10 M Cl (Ksp 1.6x105) a) saturated, b) unsaturated, c) at equilibrium, d) none of th
    6·1 answer
  • What happens to the event horizon when a larger star “dies”?
    10·1 answer
  • Electrons are emitted from a conductor when the conductor is
    5·2 answers
  • Which of the following examples accurately describes an object that is accelerating?
    6·2 answers
  • HELP FAST! PLEASE <br> This is due in 4 hrs!!!!! Ahhhh
    11·1 answer
  • The law of definite proportions states that______.
    15·1 answer
  • BRAINLIEST PLEASE HELP!!!
    10·1 answer
  • chegg The value for the equilibrium constant for the following chemical reaction, the auto-ionization of water, is 1.0x10-14 at
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!