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
KatRina [158]
3 years ago
10

Copper,oxygen,and____are examples of elements

Chemistry
1 answer:
Klio2033 [76]3 years ago
7 0
 ··hydrogen peroxide   if its wrong sorry i didnt pay atention much but i do remember the elemants being hydrogen peroxide and oxygen and copper so ya                                                                                                         ω
You might be interested in
Calculate the pH of a solution prepared by mixing: (Show your work for these calculations) pk of acetic acid is 4.75 a. two mole
kupik [55]

Answer:

Explanation:

To calculate pH you need to use Henderson-Hasselbalch formula:

pH = pka + log₁₀ \frac{[A^-]}{[HA]}

Where HA is the acid concentration and A⁻ is the conjugate base concentration.

The equilibrium of acetic acid is:

CH₃COOH ⇄ CH₃COO⁻ + H⁺ pka: 4,75

Where <em>CH₃COOH </em>is the acid and <em>CH₃COO⁻ </em>is the conjugate base.

Thus, Henderson-Hasselbalch formula for acetic acid equilibrium is:

pH = 4,75 + log₁₀ \frac{[CH_{3}COO^-]}{[CH_{3}COOH]}

a) The pH is:

pH = 4,75 + log₁₀ \frac{[2 mol]}{[2 mol]}

<em>pH = 4,75</em>

<em></em>

b) The pH is:

pH = 4,75 + log₁₀ \frac{[2 mol]}{[1mol]}

<em>pH = 5,05</em>

<em></em>

I hope it helps!

7 0
3 years ago
How many grams of mg are in 534g of mgo<br> ​
Kitty [74]

Answer:

0.534mg..

....

...

..

...

.

....

7 0
2 years ago
A change in which property of light will have no effect on whether or not the photoelectric effect occurs?
lorasvet [3.4K]

Answer:

intensity

Explanation:

Intensity has no affect on whether or not the photoelectric effect occurs. The determining property is frequency and since frequency and wavelength are inversely proportional, wavelength matters as well

3 0
3 years ago
If 200.0 grams of aluminum chloride react with calcium, how many moles of Al are produced?
irina [24]
1.49 moles of Al will be produced. Hope this helps you.

8 0
3 years ago
Most chemical reactions take place in labs true or false
arsen [322]
The answer would most likely be False
7 0
3 years ago
Read 2 more answers
Other questions:
  • The first living things to live in an are are*
    15·1 answer
  • How many elements are there in mint chocolate chip ice cream?
    9·1 answer
  • What is the total number of electrons shared in the bond between two carbon atoms in a molecule?
    9·1 answer
  • A rock has a mass of 210 grams and occupies a volume of 70 cm3. What is its density?
    10·1 answer
  • What is the molar mass of Sr(OH)2
    8·2 answers
  • Calculate the electrical energy per gram of anode material for the following reaction at 298 K:
    6·2 answers
  • Which fact is NOT true about gravity?
    12·1 answer
  • Protons,neutrons and electrons are not considered as------------ *
    6·1 answer
  • Where my Todoroki fans at?
    11·1 answer
  • Jon does an experiment in which he varies the amount of calcium chloride (CaCl2) powder used for the chemical reaction with sodi
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!