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
Alexxx [7]
3 years ago
8

Which element is presented in all organic compounds

Chemistry
1 answer:
DerKrebs [107]3 years ago
3 0
Carbon and hydrogen
You might be interested in
True or false. Large covalent molecules with the same molecular formula or more likely to have identical angles between orbitals
Alexeev081 [22]
True, because the large covalent molecules would combine with the others
6 0
3 years ago
What is the gas produced when iron(II) sulfide is treated with a nonoxidizing acid?
Art [367]

Answer:

Hydrogen sulfide

Explanation:

A nonoxidizing acid is the acid which cannot act as oxidizing agent and thus furnish hydrogen ions. Example: HCl

Iron(II) sulfide reacts with nonoxidizing acid, say hydrochloric acid to give rotten egg smelling gas, H₂S (Hydrogen sulfide).

The reaction is shown below:

FeS (s) + 2HCl (aq) ⇒ FeCl₂ (s) + H₂S (g)

A general reaction is also shown below of the reaction of Iron(II) sulfide with any nonoxidizing acid, HX as:

FeS (s) + 2HX (aq) ⇒ FeX₂ (s) + H₂S (g)

3 0
3 years ago
Calculate the pH of the solutions: [H^+]= 1.6 x 10^-3 M
Yuliya22 [10]

Answer:

A) pH = 2.8

B) pH = 5.5

C) pH = 8.9

D) pH = 13.72

Explanation:

a) [H⁺]  = 1.6 × 10⁻³ M

pH = -log [H⁺]

pH = -log [1.6 × 10⁻³ ]

pH = 2.8

b) [H⁺]  = 3 × 10⁻⁶

pH = -log [H⁺]

pH = -log [3 × 10⁻⁶ ]

pH = 5.5

c) [OH⁻] = 8.2 × 10⁻⁶

pOH = -log[OH]

pOH = -log[8.2 × 10⁻⁶]

pOH = 5.1

pH + pOH = 14

pH = 14 - pOH

pH = 14 - 5.1

pH = 8.9

d) [OH⁻] = 0.53 M

pOH = -log[OH]

pOH = -log[0.53]

pOH = 0.28

pH + pOH = 14

pH = 14 - pOH

pH = 14 - 0.28

pH = 13.72

5 0
3 years ago
Suppose you put 50 ml of water in the can instead of 100 ml and heated it to 40 degrees instead of 20 degrees. in what ways if a
Alex
<span>Answer: Once these values are put into the equation delta Q=mc delta T it will give you the same value for Q (change in energy) if the same fuel is used 50mL will mean it gets heated quicker making the experiment quicker 200mL would take longer to heat for the same change in temperature causing a longer experiment.</span>
8 0
3 years ago
Why is water a polar molecule but a fluorine molecule is not?
yKpoI14uk [10]

Answer:

The electrons in H2O are not shared equally, making it a polar molecule. The molecules in flourine, F2, are shared equally, making it not a polar molecule.

Explanation:

8 0
2 years ago
Other questions:
  • Which of the following gases would diffuse the fastest? <br> CH 4<br> CCl 4 <br> O 2<br> H 2
    13·1 answer
  • The production of NOx gases is an unwanted side reaction of the main engine combustion process that turns octane, C8H18, into CO
    11·2 answers
  • SnO2 + 2 H2 ——&gt; Sn + 2 H2O
    8·1 answer
  • The first ionization energy of fluorine and iodine
    5·1 answer
  • Answer ASAP!!!
    5·1 answer
  • What are some examples of forced convection
    11·1 answer
  • Identify this molecule
    12·1 answer
  • Question 3(1 point)
    6·1 answer
  • )Calculate the molar mass of glucose (C​6H12O6)
    7·1 answer
  • A blank is formed or separated by physical processes.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!