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
nikdorinn [45]
3 years ago
5

How many molecules does water have

Chemistry
1 answer:
mart [117]3 years ago
8 0

So, we calculate how many molecules there are in a drop of water, which we determined contains 0.002775 moles: molecules in a drop of water = (6.022 x 1023 molecules/mole) x 0.002275 moles. molecules in a drop of water = 1.67 x 1021 water molecules.

You might be interested in
3) What are the three types of sedimentary rocks?
astraxan [27]

Answer:

clastic, organic, and chemical

8 0
3 years ago
The reaction between nitrogen and oxygen is given below: 2 N2(g) + O2(g) 2 N2O(g) We therefore know that which of the following
Ostrovityanka [42]

Answer:

  • a)  2N₂O(g) → 2N₂(g)  + O₂(g)

Explanation:

Arrange the equations in the proper way for better understanding.

T<em>he reaction between nitrogen and oxygen is given below:</em>

<em />

  • <em>2N₂(g) + O₂(g) → 2N₂O(g)</em>

<em />

<em>We therefore know that which of the following reactions can also occur?</em>

<em />

  • <em>a)  2N₂O(g) → 2N₂(g)  + O₂(g)</em>
  • <em>b)  N₂(g) + 2O₂(g) → 2NO₂(g)</em>
  • <em>c)  2NO₂(g) → N₂(g) + 2O₂(g)</em>
  • <em>d) None of the Above</em>

<h2>Solution</h2>

Notice that the first equation,  a) 2N₂O(g) → 2N₂(g)  + O₂(g), is the reverse of the original equation, 2N₂(g) + O₂(g) → 2N₂O(g).

The reactions in gaseous phase are reversible reactions that can be driven to one or other direction by modifying the conditions of temperature or pressure.

Thus, the equilibrium equation would be:

  • 2N₂(g) + O₂(g) ⇄ 2N₂O(g)

Which shows that both the forward and the reverse reactions occur.

Whether one or the other are favored would depend on the temperature and pressure: high temperatures would favor the reaction that consumes more heat (the endothermic reaction) and high pressures would favor the reaction that consumes more moles.

Thus, by knowing that one of the reactions can occur you can conclude that the reverse reaction can also occur.

3 0
3 years ago
Jayne's science teacher mixed a clear liquid with a blue liquid in a beaker. After a few minutes there was a white solid at the
Nesterboy [21]
Jayne's science teacher mixed a clear liquid with a blue liquid in a beaker. After a few minutes there was a white solid at the bottom of the beaker.So,<span>It is a new substance with different properties.</span>
7 0
3 years ago
2NaBr → 2NaC1+Bry<br> ? +<br> menge<br> o HCI<br> o Cl2<br> O Na<br> DONE
Lemur [1.5K]

Answer:

Cl2

Explanation:

NaBr is a reducing agent, Cl2 is an oxidizing agent.

7 0
3 years ago
If you're given an unknown liquid with a mass of 3.444 g and a volume
natta225 [31]

Answer:

9.0157 kilogram/cubic meter

I used an online calculator

Hope I helped!

5 0
3 years ago
Other questions:
  • A sample of helium has a temperature of 450 K. The gas is cooled to 248.9 K at which time the gas occupies 103.4 L? Assume press
    10·2 answers
  • QUICK WILL MARK BRAINLIEST!!
    13·1 answer
  • Which way does the heat flow?
    15·1 answer
  • Which property is a measure of the average kinetic energy of the particles in a sample or matter?
    9·1 answer
  • A 24% acid solution is mixed with a 14% acid solution to form a 19% acid solution. How many liters of the 24% acid solution are
    14·1 answer
  • Can somobody help me??????​
    13·1 answer
  • A magnet was placed near a pile that contained both iron and sulfur. The magnet was moved gradually closer to the pile. As it ne
    9·2 answers
  • Is anyone good at chemistry if so can someone help me please ?<br><br> (NO LINKS)
    10·1 answer
  • Which of the following is an example of a compounds?
    6·1 answer
  • What is the total number of moles of Ca(NO3)2 needed
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!