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
LenaWriter [7]
3 years ago
15

How many atoms of carbon are in a pencil if the mass of carbon is 2.00 g.?

Chemistry
1 answer:
yulyashka [42]3 years ago
3 0

so, There are (1/12.0)moles with each mole having 6.022 x10^23 atoms. 1 mole of carbon-12 has 6.02 x 1023 iotas.


You might be interested in
What is the scientific name for the output variable
amm1812

Answer:

Coefficient

Explanation:

I am not that sure, but just wanted to help.

4 0
3 years ago
Balance this redox reaction occurring in acidic media:
Lelu [443]
Add 7 water atom to the right hand side to adjust the quantity of oxygen. Increase Cr(+3) by two to adjust the quantity of Cr. Duplicate Cl-by two to adjust the quantity of chlorine molecules. 
Cr2O7[2-](aq) +2 Cl[-](aq) < - >2 Cr[3+] (aq) + Cl2(g)+7H2O 
Presently adjust that charges. 
you have - 4 charges on the left hand side, while +18 charges on the right hand side, there for include 14H+ the left hand side to adjust the charges 
Cr2O7[2-](aq) +2 Cl[-](aq)+14H+ < - >2 Cr[3+] (aq) + Cl2(g)+7H2O 
take note of that the oxidation number of hydrogen in water is +1
3 0
3 years ago
If HCl were added to a solution containing lead(II) ions, sodium ions, nickel(II) ions, and potassium ions, which ions would pre
Romashka-Z-Leto [24]
When HCl is added to metal ions, metal chlorides are produced. In this problem, it is asked whether the given ions precipitate or not when added to HCl. According to the rule, all chlorides except Ag+, Pb 2+, Hg2 2+ are soluble. Hence the ion that would precipitate is only lead (II) ion.
8 0
3 years ago
Explain why the process of dissolution can be exothermic or endothermic (heat of solution) with different solutes
RUDIKE [14]

Answer:

The process of dissolving is exothermic when more energy is released when water molecules “bond” to the solute than is used to pull the solute apart. Because more energy is released than is used, the molecules of the solution move faster, making the temperature increase.

Project the image Endothermic Dissolving.

The process of dissolving is endothermic when less energy is released when water molecules “bond” to the solute than is used to pull the solute apart. Because less energy is released than is used, the molecules of the solution move more slowly, making the temperature decrease.

4 0
3 years ago
A unicellular organism has how many cells?<br> O two<br> O many<br> O one<br> O<br> three
Flauer [41]
The answer is many.
5 0
3 years ago
Read 2 more answers
Other questions:
  • If 0.35 m of ammonia solution has a ph of 9.15, what is the h+ concentration of the solution?
    6·1 answer
  • 30. What is the Bronsted base of H2PO4- + OH- ⟶HPO42- + H2O?
    8·1 answer
  • In the process of respiration, animals use oxygen and release ___________.
    11·2 answers
  • From the Henderson-Hasselbalch equation, explain how the ratio [Al/[HA] changes with changing pH
    14·1 answer
  • Công thức toingr quát anken
    15·1 answer
  • Explain why this compound is not a hydrocarbon. *<br> (2 points)
    12·2 answers
  • If you have 10g of Fe and 20 g of oxygen, how much product will you have?
    7·1 answer
  • What will happen to the pH of a solution when the [H+] is increased?
    12·1 answer
  • Write the chemical formula of the following compounds <br>​
    7·1 answer
  • What is the barometric trend of the weather data?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!