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
Anna007 [38]
3 years ago
8

How is life on Earth affected by Earth's revolution around the Sun

Chemistry
1 answer:
kolezko [41]3 years ago
3 0
Some laces get warm and some get cold
You might be interested in
some inkjet printers produce picoliter-sized drops. how many water molecules are there in one picoliter of water? the density of
GrogVix [38]

3.37 x 10¹⁰ molecules

Explanation:

Given parameters:

Volume of water = 1pL = 1 x 10⁻¹²L

Density of water = 1.00g/mL = 1000g/L

Unknown:

Number of water molecules = ?

Solution:

To solve this problem, we first find the mass of the water molecule in the inkjet.

       Mass of water = density of water x volume of water

Then, the number of molecules can be determined using the expression below:

        number of moles = \frac{mass of water}{molar mass of water}

 Number of molecules = number of moles x 6.02 x 10²³

Solving:

Mass of water = 1 x 10⁻¹² x 1000 = 1 x 10⁻⁹g

Number of moles:

Molar mass of H₂O = 2 + 16 = 18g/mol

Number of moles = \frac{1 x 10^{-12} }{18} = 5.6 x 10⁻¹⁴moles

Number of molecules =  5.6 x 10⁻¹⁴   x   6.02 x 10²³ = 33.7 x 10⁹

                                     = 3.37 x 10¹⁰ molecules

Learn more:

Number of molecules brainly.com/question/4597791

#learnwithBrainly

4 0
3 years ago
According to the bohr model of the atom, where can atoms exist? where will they ot exist
Inga [223]
At least, that's what Bohr<span> decided, and that's why he proposed the </span>existence<span> of the</span>atomic<span> energy level. </span>According<span> to </span>Bohr<span>, the electrons in an </span>atom<span> were only allowed to </span>exist<span> at certain energy levels</span>
6 0
3 years ago
How many atoms are in 68.44 grams
creativ13 [48]
Correct answer There are 68 grams are in atoms
3 0
3 years ago
Reactions cannot occur without a certain minimum amount of energy. What is this minimum amount of energy called? A.the activatio
madam [21]
A. the activation energy 
7 0
3 years ago
Read 2 more answers
If n is the energy level, the number of electrons in that energy level is
attashe74 [19]

Answer:

I needed some free points that's why I am doing so

3 0
2 years ago
Other questions:
  • Enter your answer in the provided box. Oxidation of gaseous ClF by F2 yields liquid ClF3, an important fluorinating agent. Use t
    6·1 answer
  • If the total mass of the products of a reaction is 90 gram, what was the total mass of the reactants
    13·1 answer
  • How many significant figures are in 0.05?
    6·1 answer
  • you rent a car in Germany with a gas mileage rating of 12.8km/L. What is its rating in miles per gallon?
    13·2 answers
  • How do valence electrons affect chemical bonding?
    11·1 answer
  • If you were conducting an experiment to see whether eating candy makes gerbils fat, what variable might you change?
    15·2 answers
  • Why is it harder to break an ionic bond than a covalent? Need answer asap!
    5·1 answer
  • For the reaction H2(g) + 12(g) = 2HI(g), Kc = 50.2 at 445°C. If
    9·1 answer
  • Chemical ____ are used to represent compounds ​
    12·2 answers
  • Heterogeneous mixtures are throughout, while homogeneous mixtures are throughout.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!