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
horrorfan [7]
3 years ago
11

What Went Wrong – Balancing Chemical Equations

Chemistry
1 answer:
OLEGan [10]3 years ago
4 0
1-It has to be 3 Fe and not Fe3.
2-The oxygens aren't balanced

Balanced equation:
3Fe+4H2O---->Fe3O4+4H2
You might be interested in
Dinitrogen pentoxide is used in the preparation of explosives. If 7.93 mol of
Tpy6a [65]

The volume of O₂ produced: 84.6 L

<h3>Further explanation</h3>

Given

7.93 mol of  dinitrogen pentoxide

T = 48 + 273 = 321 K

P = 125 kPa = 1,23365 atm

Required

Volume of O₂

Solution

Decomposition reaction of dinitrogen pentoxide

2N₂O₅(g)→4NO₂(g)+O₂ (g)

From the equation, mol ratio N₂O₅ : O₂ = 2 : 1, so mol O₂ :

= 0.5 x mol N₂O₅

= 0.5 x 7.93

= 3.965 moles

The volume of O₂ :

\tt V=\dfrac{nRT}{P}\\\\V=\dfrac{3.965\times 0.082\times 321}{1.23365}\\\\V=84.6~L

5 0
3 years ago
Calculate the mass in grams of calcium carbonate present in a 50.00 mL sample of an aqueous calcium carbonate standard, assuming
Assoli18 [71]
The units of ppm means parts per million. Also, It is equivalent to milligrams per liter. It is one way of expressing concentration of a substance. It u<span>sually used to describe the concentration of something in water or soil. We calculate the mass of CaCO3 as follows:

Mass = 75 mg/L (.050 L) = <span>3.75 mg CaCO3</span></span>
7 0
3 years ago
What is the uppermost, horizontal area of a page?
Nookie1986 [14]
I think the answer is a and c

I
5 0
3 years ago
Which of the following is true about the two atoms below?
nordsb [41]

Answer:

Different Number of neutrons.

4 0
2 years ago
What is the heat needed to raise the temperature of 24.7 kg silver from 14.0 degrees Celsius to 30.0 degrees Celsius? Specific h
ELEN [110]

Answer:

Q=93.3kJ

Explanation:

Hello,

In this case, by knowing that the heat due to a change of temperature is given by:

Q=mCp\Delta T

Whereas Q accounts for the heat, m for the mass, Cp the heat capacity and ΔT for the change in temperature. In such a way the required heat results:

Q=24.7kg*236\frac{J}{kg^oC}*(30.0-14.0)^oC*\frac{1kJ}{1000J} \\Q=93.3kJ

Best regards.

8 0
3 years ago
Other questions:
  • Which of the following is not a characteristic of solids?
    10·1 answer
  • 400ml of 2.5M can be deluded to make how many of 2.0 HCI
    12·1 answer
  • Magnesium reacts with hydrochloric acid to produce magnesium chloride and hydrogen gas. The reactants in this reaction are?
    15·1 answer
  • Given the reaction agi(s) ↔ ag+(aq) + i-(aq) solution equilibrium is reached in the system when
    5·1 answer
  • Problem Page Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Supposed 8.14 g
    12·1 answer
  • How many formula units make up 25.8g of magnesium chloride (MgCl2)? Express the number of formula units numerically.
    8·1 answer
  • What does a bi-directional arrow tell you about a chemical reaction?
    7·1 answer
  • Which group in the periodic table contains the three elements with the highest electrical conductivities?
    14·1 answer
  • Which one of the following produces hydrogen ions in a water solution?
    7·1 answer
  • _______ are used because they're economical, easy to process, easy to transport, and the infrastructure exists for their storage
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!