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
Aleksandr [31]
2 years ago
12

What mass of O2 is needed to completely react with 500 g of Fe

Chemistry
1 answer:
Zina [86]2 years ago
8 0

Answer:

solution given:

Explanation:

4Fe +3O2------------>2Fe2O3

4mole. 3mole. 2 mole

224g. 96g. 320g

we have

224 g of fe needed to react completely with 96 g of O2

500g of fe needed to react completely with

96 ×500/224=214.3g of O2

214.3g of O2 is a required answer.

You might be interested in
Precipitation _____. occurs equally all over the globe is the change in state from a gas to a liquid happens when ice changes in
LenKa [72]
<h3><u>Answer;</u></h3>

exceeds evaporation over land

Precipitation<u> exceeds evaporation over land </u>

<h3><u>Explanation;</u></h3>
  • <em><u>In order to maintain earths water balance, evaporation exceeds precipitation over oceans but precipitation exceeds evaporation over land.</u></em>
  • Water evaporates into the atmosphere from the ocean and to a much lesser extent from the continents. Winds transport this moisture-laden air, often great distances, until conditions cause the moisture to condense into clouds and to precipitate and fall.
  • Most precipitation originates by evaporation from the oceans. Over time, water evaporated from the oceans is replenished by inflow of freshwater from rivers and streams.
4 0
2 years ago
A gas at constant temperature has a pressure of 404.6 kPa with a volume of 12 ml. If the volume changes to 43ml, what is the new
blagie [28]

Answer:

The answer is

<h2>112.912 kPa</h2>

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the new pressure

P_2 =  \frac{P_1V_1}{V_2}  \\

404.6 kPa = 404600 Pa

From the question we have

P_2 =  \frac{404600 \times 12}{43}  =  \frac{4855200}{43}  \\  = 112911.6279... \\  = 112912

We have the final answer as

<h3>112.912 kPa</h3>

Hope this helps you

4 0
3 years ago
The melting point of aluminum is about 660 °C. How many degrees above the boiling point of water is this temperature?
Arte-miy333 [17]
560 degrees above water
8 0
2 years ago
What is 0.000980 in scientific notation
JulijaS [17]

Answer:

9.80x10^-4

Explanation:

5 0
3 years ago
Read 2 more answers
The symbol for the element in period 2, group 13
denis-greek [22]
Element: Boron
Symbol: B
So answer is B
8 0
2 years ago
Other questions:
  • Adrenaline is the hormone that triggers the release of extra glucose molecules in times of stress or emergency. A solution of 0.
    15·1 answer
  • In the reaction ______ H2 + N2 ----&gt; 2 NH3, what coefficient should be placed in front of H2 to balance the reaction?
    7·2 answers
  • The meselson-stahl experiment demonstrated that DNA replication is semi conservative in the figure semi conservative replication
    15·2 answers
  • How many grams of perchloric acid, HClO4, are contained in 39.1 g of 74.9 wt% aqueous perchloric acid
    11·1 answer
  • {Plz answer} Thank you!
    12·2 answers
  • Help me plssssssssssssssssssssss
    6·2 answers
  • Someone please help me dont scroll i need help
    15·1 answer
  • Recessive genes are _____.
    10·1 answer
  • Calculate the number of grams nitric acid (HNO3) in 375 L of a 1.00 M solution.
    6·1 answer
  • Saturn has a diameter of 74,898 miles. What is its diameter in kilometers? (1
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!