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
ehidna [41]
2 years ago
15

Pls help if you only know the correct answer! Thanks! :)

Chemistry
1 answer:
Aleksandr [31]2 years ago
3 0

18. the blank should be "CO_{2}"

19. the question seems to be answered.

20. CH_{3}

You might be interested in
Calculate the atomic mass of Carbon if the two common isotopes of carbon have masses of
Mars2501 [29]

Answer:

Average atomic mass of carbon = 12.01 amu.

Explanation:

Given data:

Abundance of C¹² = 98.89%

Abundance of C¹³ = 1.11%

Atomic mass of C¹² = 12.000 amu

Atomic mass of C¹³ = 13.003 amu

Average atomic mass = ?

Solution:

Average atomic mass of carbon = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass of carbon = (12.000×98.89)+(13.003×1.11) /100

Average atomic mass of carbon=  1186.68 + 14.43333 / 100

Average atomic mass of carbon = 1201.11333 / 100

Average atomic mass of carbon = 12.01 amu.

5 0
3 years ago
Al2O3 + Fe Yields Fe3O4 + Al need before tomorrow
ella [17]
=<span><span><span><span><span><span><span><span><span>148.413159d</span><span>f2</span></span>i</span>l</span><span>o4</span></span>s</span>y</span>+<span><span>a<span>l2</span></span><span>o3</span></span></span>+<span>a<span>l is the answer and have a nice day :)</span></span></span>
4 0
3 years ago
Balance the following equation in acidic conditions Phases are optional. S2O3 2- + Cu 2+ ---&gt; S4O6 2- + Cu+
jonny [76]

To balance the the chemical reaction, the number of moles per element is balance is both side of the reaction and also the charge in both sides of the reation. to balnce the reaction:

S2O3 2- + Cu 2+ ---> S4O6 2- + Cu+

2S2O3 2- + Cu 2+ ---> S4O6 2- + Cu+ + e

3 0
3 years ago
What substance can act as catalysts in the body?
pickupchik [31]

Answer:

Enzymes

Explanation:

Enzymes are proteins that can act as  catalysts in the body.

8 0
3 years ago
Nonpolar substances do not dissolve in polar solvents like water. If you're conducting an investigation to test the solubility o
shusha [124]
I would expect silane because all the rest have an overall dipole movement
3 0
3 years ago
Other questions:
  • PH is a logarithmic scale used to indicate the hydrogen ion concentration, [H+], of a solution: pH=−log[H+] Due to the autoioniz
    12·1 answer
  • How do you solve stoichiometry problems
    14·1 answer
  • Why is the deuterium-tritium reaction the most promising nuclear fusion reaction for future energy production?
    13·2 answers
  • 12.) Which type of force is stronger?<br> A)intermolecular forces<br> B)intramolecular forces
    7·2 answers
  • Which of the following is a chemical property of aluminum?
    8·1 answer
  • Someone PLEASE help me I don’t remember this.
    13·1 answer
  • Any help is valued, thanks in advance, Electronegativity and bonds
    11·1 answer
  • According to the reaction, below, how many grams of aluminum are needed to react fully with 100 grams of sulfur? 2AL + 3s - Al2S
    6·1 answer
  • How many grams of aluminum is required to react with 75.0 ml of 2.50 M HCl?
    8·1 answer
  • Identify the species that is oxidized and the species that is reduced in this reaction. Also, identify the oxidizing agent and t
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!