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
shtirl [24]
2 years ago
15

How many molecules is 7.22 mole H2O

Chemistry
2 answers:
Vinil7 [7]2 years ago
6 0

Answer:

no H2O molecules are produced:)

Explanation:

rjkz [21]2 years ago
3 0

Answer: 18 g of water occupies one mole and one mole contains Avagadro’s no. of molecules = 6.023*10^23 molecules .

Explanation:question says 72 g of water . 72 g of water occupies 4 moles.

So the no. of molecules in 72 g of water has 4*(6.023*10^23) molecules .

You might be interested in
How does the Doppler effect related to the universal expanding?
tensa zangetsu [6.8K]
The Doppler effect doesn't just apply to sound. It works with all types of waves, which includes light. Edwin Hubble used the Doppler effect to determine that the universe is expanding. Hubble found that the light from distant galaxies was shifted toward lower frequencies, to the red end of the spectrum. This is known as a red Doppler shift, or a red-shift. If the galaxies were moving toward Hubble, the light would have been blue-shifted.

7 0
3 years ago
How do nuclear fusion and combustion relate?
RUDIKE [14]

Answer:The key to remember is that carbon combustion requires oxygen. As soon as there is no oxygen left, carbon combustion stops. In nuclear fusion, the nuclei of atoms are fused together to make new, bigger nuclei.

Explanation:

6 0
2 years ago
Heats makes particles vibrate _________ (btw the options are in the pic)
Pie

Answer:ok so When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.

hope this helps have a nice day❤️

Explanation:

8 0
2 years ago
How many joules of heat are absorbed to raise the temperature of 435 grams of water at 1 atm from 25°C to its boiling point, 100
zepelin [54]
The energy absorbed may be calculated using:
Q = mcΔT
Where Q is the energy absorbed, m is the mass of water, c is the specific heat capacity of the water and ΔT is the change is the temperature of the water. Substituting the values,
Q = (435)(4.18)(100-25)
Q = 136,372 J

The energy absorbed is 136.4 kJ
7 0
3 years ago
A force of 99 N causes a box to accelerate at a rate of 11 m/s2. What is the mass of the box? (Ignore frictional effects.)
wlad13 [49]
F =  ma

<span>m = F/a = 99/11 = 9 kg</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • The molar heat of fusion of gold is 12.550 kJ mol–1. At its melting point, how much mass of melted gold must solidify to release
    7·2 answers
  • Do all systems have energy?
    5·1 answer
  • When using the benedict's assay, which color would indicate the most reducing sugar present?
    12·1 answer
  • Eriq, a chemist, is running tests with four unknown elements. He has found that they all bond the same way, so he knows that the
    14·2 answers
  • What is solubility?
    7·2 answers
  • I’m 13 if I did 100 reps of 5 types of push-ups will it build muscle in arms and chest
    9·1 answer
  • Which is a fossil fuel?<br> O A. Coal<br> O B. Biomass<br> O C. Geothermal<br> O D. Nuclear
    9·1 answer
  • This is the chemical equation for the production of ammonia (chemical formula: NH3) from Nitrogen and Hydrogen (N2 and H2):
    14·1 answer
  • Which is easier to compress, a gas or a solid? Explain your answer.
    6·2 answers
  • Acids and bases release what kind of ions in water?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!