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
agasfer [191]
3 years ago
13

How many atoms are in a grain of sand??

Biology
2 answers:
Naily [24]3 years ago
8 0
Avogadro tells us that we have 6.023 x 10^23 SiO2 units per gram, so there would be 6.023 x 10^23 / 60 ≈ 1 x 10^22 SiO2 units in a gram of pure SiO2, and with SiO2 composed of 3 atoms<span>, that puts us at </span>3<span> x 10^22 atoms per gram of SiO2. Now, a grain of sand does not weigh 1 gram. It weighs less</span>
34kurt3 years ago
5 0
5 x 10^19 atoms in standard expression. hope this helps
You might be interested in
Initially, how did scientists classify organisms?
guajiro [1.7K]
Started with the same two groups: Plants and Animals. ... This is called a binomial naming system and it has two parts. The first part of the species name identifies the genus to which the species belongs; the second part identifies the species within the genus.
7 0
3 years ago
What do you call the missing part of rock record ?
viva [34]

The answer should be an unconformity

7 0
3 years ago
Lab equipment crossword
Yuliya22 [10]
Where is the picture
6 0
3 years ago
Which part of your circulatory system carries blood AWAY from your heart?
Tanzania [10]
The arteries carry blood away from the heart
8 0
3 years ago
Read 2 more answers
What are the smallest functional and structural building blocks of life
Molodets [167]
The answer is the cell
7 0
3 years ago
Read 2 more answers
Other questions:
  • Elements are basic forms of _____?​
    15·1 answer
  • Inside a prokaryote, such as E. coli, an operon controls for the production of the amino acid tryptophan. What occurs in the cel
    12·2 answers
  • Which of the following authors were known for their critical writing about the excesses and problems resulting from industrializ
    13·1 answer
  • Which statement about vacuoles is true
    14·1 answer
  • The_variable is part of the experiment that is being tested or the part that is changed by the person doing the experiment (fill
    8·2 answers
  • 18.
    11·2 answers
  • Number 3 and 4 Please! <br><br> Thanks in advance...
    7·1 answer
  • The environmental factors that are important depend on the habitat true or false
    13·2 answers
  • Help please don't know the answer​
    9·2 answers
  • NEED HELP!!!!!! QUICK PLEASE!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!