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
Tpy6a [65]
2 years ago
6

4Fe + 3O2 → 2Fe2O3

Chemistry
1 answer:
dsp732 years ago
5 0
The correct answer is A.
You might be interested in
. how many lone pairs of electrons are present in the lewis structure of calcium sulfide?
miv72 [106K]
Answer:
            <u>Four</u>

Explanation:
                     Calcium Sulfide is an ionic compound made up of Ca²⁺ and S²⁻.
Ca²⁺ is formed as,

                                   Ca    →    Ca²⁺  +  2 e⁻

These two electrons are accepte by Sulfur as,

                                     S  +  2 e⁻    →    S²⁻

So, before accepting 2 electrons S was having six valence electrons, after accepting two electrons from Ca it has 8 electrons which are present in four pairs as shown below,

7 0
3 years ago
How does changing the volume or temperature of a gas affect the pressure of that gas?
Masja [62]

Answer:

When a gas occupies a smaller volume, it exerts a higher pressure; when it occupies a larger volume, it exerts a lower pressure (assuming the amount of gas and the temperature do not change). Since P and V are inversely proportional, a graph of 1/P vs. V is linear.

Explanation:

<h2><u><em>This is all I know.</em></u></h2><h2><u><em>Hope it helps~</em></u></h2><h2><u><em>Good luck with your work!!~</em></u></h2>
6 0
2 years ago
What is the pH of a Koh solution that has [H+]=1.87×10^-13M
xenn [34]
PH=-log[H⁺]
pH=-log(1.87×10⁻¹³)
pH=12.72

I hope this helps.  Let me know if anything is unclear.
7 0
3 years ago
Read 2 more answers
Dr. Alexander Winemann is a ________ist who specializes in organic chemistry.
Vlad [161]
Winneman is a chemist
3 0
3 years ago
When an equation is balanced what is the same on both side?
sammy [17]
"equal to"

1=1
1 is equal to 1

Is this what you mean?
3 0
2 years ago
Read 2 more answers
Other questions:
  • Because of its high heat content, the most valuable type of coal is __________.
    7·1 answer
  • Where do proteins get the energy to combine co2 and other compounds in the calvin cycle?
    13·1 answer
  • Write a balanced chemical equation, including physical state symbols, for the decomposition of solid calcium carbonate (CaCO_3)
    7·2 answers
  • Choose all the answers that apply. Which of the following has kinetic energy? rolling ball, moving car, book on a table, spinnin
    12·1 answer
  • Determine a planet from our solar system is located far from the sun. Describe the size and composition of this planet
    11·2 answers
  • Can some one help I'm lost iam being timed:( Show using two conversion factors how you would convert from 0.020 kg into mg
    7·1 answer
  • 2) explain why Ce(iii) with a 4f1 configuration is colourless and Ce(iv) with 4f0 configuration is red?​
    8·1 answer
  • Steel is the most commonly used metallic material. However, its annual loss due to corrosion is huge. Preventing metal corrosion
    14·2 answers
  • WORTH 20 POINTS Confirmation bias is where a scientist may change the data to support a certain bias.
    5·1 answer
  • What is the theoretical yield of NaBr
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!