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
White raven [17]
3 years ago
14

What is the oxidation half-reaction for 2Mg + O2 + 2Mgo?

Chemistry
1 answer:
miv72 [106K]3 years ago
5 0

Answer:

B => Mg° => Mg⁺² + 2e⁻

Explanation:

2Mg° + O₂ => 2MgO  rewrite => Mg° + 1/2O₂ => 2MgO

Oxidation Half Rxn => Mg° => Mg⁺² + 2e⁻

Reduction Half Rxn => 1/2O₂ + 2e⁻ => 2O⁻

__________________________________-

FYI Note =>  For half-reactions one always finds the electrons listed on the product side of the reaction for oxidation reactions and for reduction reactions on the reactant side.

You might be interested in
Calculate the work done when a force of 500N moves an object 20m. and (B) if it
strojnjashka [21]

Answer:

work done = force multiplied by distance covered,which is 500n multiplied by 20 m= 10000nm

power= work done/time

p= 10000/10

p=1000

4 0
3 years ago
The double covalent bond within unsaturated hydrocarbons_____. are very strong are easily broken are saturated contain oxygen
nadezda [96]

Answer:

are easily broken

Explanation:

The double covalent bond within unsaturated hydrocarbons are easily broken.

7 0
3 years ago
Read 2 more answers
I cant seem to figure out ANY of these... help when you can pls :.)
Nonamiya [84]
The first one is some reaction with water even I am studying the same
7 0
3 years ago
A student prepares a weak acid solution by dissolving 0.2000 g HZ to give 100. mL solution. The titration requires 33.5 mL of 0.
nexus9112 [7]

Answer:

a)M=0.20/(0.335*0.1025)= 0.20/ 0.034 = 5.88 g/mol

b) if 0.100g is used instead of 0.200g

M = 0.1 / 0.034 = 2.94  hence the molar mass will be too low

Explanation:

0.2000 gHZ gives  100ml acid solution

33.5 ml of 0.1025 M NaOH  is required to prepare it

the moles = mass / molar mass

mass = 0.200 gHZ

moles = 0.0335*100 * 0.1025 = 0.034

therefore molar mass = mass / moles

                                  M=0.20/(0.335*0.1025)= 0.20/ 0.034 = 5.88

if 0.100g is used instead of 0.200g

M = 0.1 / 0.034 = 2.94  hence the molar mass will be too low

3 0
3 years ago
Calculate the volume of this irregular solid to the nearest cubic centimeter​
EleoNora [17]

Answer:

8 cm3

Explanation:

The volume of this irregular solid will calculated as the difference between the final volume and the initial volume;

The final volume of the water and the solid is 25 ml

The initial volume of the water alone was 17 ml

The volume of the irregular solid is thus approximately;

25 - 17 = 8 ml

We then use the conversion;

1 cm3 = 1 mL

Thus the volume of the solid is 8 cm3

6 0
3 years ago
Read 2 more answers
Other questions:
  • Argon has a mass of 2.82 grams, what is Argon's volume at STP?*
    15·1 answer
  • What is an example of an irreversible physical change?
    7·1 answer
  • Molality (m) is _______. A. the number of moles of solute / the number of kilograms of solvent B. the number of kilograms of sol
    15·1 answer
  • An unknown monatomic gas diffuses twice as fast as Br2. What is the identity of this unknown gas?
    14·1 answer
  • Neodymium battery + sulfuric acid ——> neodymium sulfate + iron sulfate + boron + hydrogen. I have 5g of Nd2Fe14B and enough H
    9·1 answer
  • The equilibrium constant for the gas phase reaction
    9·1 answer
  • Witch equations are correctly balanced.
    14·1 answer
  • You are asked to determine the identity of an unknown liquid and can measure only one physical property. you heat a liquid and r
    7·1 answer
  • PLEASE HELP ME DUE TOMORROW IT REALLY HELPS IF YOU HELP ME THANK YOU SO MUCH IS YOU DO HELP ME!!
    14·1 answer
  • 10 points<br><br> How many more oxygen atoms are in 3Mg3(PO4)2 than in 4Al2O3?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!