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
nikitadnepr [17]
4 years ago
9

Write the equation for the oxidation reaction that occurred on the copper spiral when it was heated

Chemistry
1 answer:
Butoxors [25]4 years ago
8 0
Cu + O2 -----> 2CuO
( Cu^{0} -2  e^{-}  -----\ \textgreater \  Cu^{+2})    *2 / oxidation

 O_{2} +4 e^{-} ------\ \textgreater \  2O^{-2}   / reduction

------------------------------------------------------

 2Cu^{0} +   O_{2} ^{0} -----\ \textgreater \  2 Cu^{+2} + 2 O^{-2}
You might be interested in
Please help with this, i don't really get how to do this
LuckyWell [14K]
#4 and #5:
To find pH given concentration of H+ or H30+
pH = - log (H+ or H30+ M)

To find pH given concentration of OH-
Since you already found the pH for this (in #4), you subtract #4's answer from 14.
14 - (pH) = pOH
8 0
3 years ago
Photosynthesis is the chemical process in which plants and other organisms
-Dominant- [34]

Answer:

sugar and oxygen

Explanation:

sugar (glucose) and oxygen

7 0
2 years ago
2. How many moles are in 8.30 x 1023 molecules of H2O?
daser333 [38]

Answer:

<h2>1.38 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{8.30 \times  {10}^{23} }{6.02 \times  {10}^{23} }  =  \frac{8.30}{6.02}  \\  = 1.3787 37...

We have the final answer as

<h3>1.38 moles</h3>

Hope this helps you

8 0
3 years ago
Which of the following is the best example of an open system? (2 points)
Dmitriy789 [7]
1) A Car engine.............. Hope it helps, Have a nice day :)
5 0
3 years ago
Read 2 more answers
.
Debora [2.8K]

Explanation:

Their force of attraction is strongest in the middle of the magnet.

4 0
2 years ago
Read 2 more answers
Other questions:
  • What is the oxidation number of iodine in KIO4?(1) +1 (3) +7(2) -1 (4) - 7
    6·1 answer
  • Which of the following does not participate in, nor is a component of, the electron transport chain? (Remember that molecules ca
    8·1 answer
  • How many atoms are in a sample of 72.8 g calcium (Ca)?
    15·2 answers
  • Is smoke a element, compound , heterogenous mixture or a solution??
    10·2 answers
  • If a person burns 2171 Cal each day, how much energy (kJ) does she burn in 2 days?
    11·1 answer
  • Copper atoms are oxidised at the positive electrode to Cu2+ ions, as shown in the half equation.
    6·1 answer
  • Describe why corrosion is a natural process
    12·1 answer
  • An atom of element Be has four protons, four electrons, and five neutrons. Which element below could be an isotope of this atom?
    13·2 answers
  • • Take a tablespoonful of turmeric powder. Add a little water and make a paste. Apply turmeric paste on a sheet of plane white p
    6·1 answer
  • ____________ use cleaning solutions that eventually become spent and must be disposed of properly.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!