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
Nataly [62]
3 years ago
11

By definition 12 grams of carbon-12 must contain how many atoms?

Chemistry
1 answer:
krek1111 [17]3 years ago
5 0
It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12. So, 1 molecule contains 6.022×10^23 elementary entities of the substance.

Hope that helps
You might be interested in
Draw a lewis structure for hnc and assign the non-zero formal charges to each atom. draw the lewis structures with the formal ch
Yuliya22 [10]
<span>Answer: H-C-N H-N-C C-H-N Notice that C-H-N is the same as N-H-C just written backwards. ( i.e. they have the same connectivtiy.) You can exclude the last one with H in the middle since H has two bonds and 4 electrons around it. At this point you couldn't differentiate between the first two, so I would give you the connectivity in such a problem, which in this case is H-C-N.</span>
3 0
3 years ago
Describe at least three ways our understanding of the atom has changed overtime?
myrzilka [38]

Answer:

multitide of uses (drinking, cleaning, cooking, transportation). Without water we would not survive. -Lead atoms bond together and they make up the lead that we use as a pencil. -Copper atoms, aluminum atoms, nickel atoms, etc., all make up metal which is used for a variety of things in everyday life.

Explanation:

7 0
3 years ago
4. Determine what elements are in the following compounds.
lilavasa [31]
Nitrogen=2, Hydrogen=8, Carbon=1, Oxygen=3

Hydrogen=4, Carbon=2, Oxygen=2

Iron=1, Nitrogen=2, Oxygen=6
8 0
3 years ago
Does the law of inertia apply to both moving and non-moving objects
zhuklara [117]
Yes becuase it says it maintains its velocity if it is moving or at rest
8 0
3 years ago
which of these solutions has the lowest freezing point? 0.25 m nacl 0.5 m nacl 1.0 m nacl 1.5 m nacl 2.0 m nacl
Alinara [238K]
The more particles (ions or molecules) that you can put into solution, the lower the freezing point. 

the answer is E. 2.0 M nacl
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement about organic matter is false? A. Organic matter comes from organisms. B. Organic matter contains the element, c
    8·2 answers
  • How could you make plastic sink and steel float
    11·1 answer
  • What is the difference between a solute and a solvent?
    5·1 answer
  • Calculate the solubility of silver chloride in 0.17M AgNO3. (Ksp=1.8E-10)
    6·1 answer
  • Jon is completing a lab for his chemistry class, and Katarina is finishing a lab for her geology class. They investigated differ
    12·1 answer
  • How many atoms are in 2.56 g of Si?
    14·1 answer
  • The half-life of C-14 is 5470 years. If a particular archaeological sample has one-quarter of its original radioactivity remaini
    11·1 answer
  • The noble gases can be found in group/period ____
    11·2 answers
  • I need help in thiss
    10·1 answer
  • Explain what happens during a solar eclipse
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!