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
PilotLPTM [1.2K]
3 years ago
9

Hardest question that nobody can answer about diffusion​

Chemistry
1 answer:
valkas [14]3 years ago
7 0

Is the movement of a substance from an area of high concentration to an area of low concentration

You might be interested in
A hot air balloon is filled with 15 moles helium gas and 5 moles nitrogen gas. What is the volume of the balloon at 1.01 atm and
kvasek [131]

<u>Given:</u>

Moles of He = 15

Moles of N2 = 5

Pressure (P) = 1.01 atm

Temperature (T) = 300 K

<u>To determine:</u>

The volume (V) of the balloon

<u>Explanation:</u>

From the ideal gas law:

PV = nRT

where P = pressure of the gas

V = volume

n = number of moles of the gas

T = temperature

R = gas constant = 0.0821 L-atm/mol-K

In this case we have:-

n(total) = 15 + 5 = 20 moles

P = 1.01 atm and T = 300K

V = nRT/P = 20 moles * 0.0821 L-atm/mol-K * 300 K/1.01 atm = 487.7 L

Ans: Volume of the balloon is around 488 L


3 0
3 years ago
. Find the mass of 0.159 mol silicon dioxide.​
Juliette [100K]

Answer:

9.55 grams of SiO2

Explanation:

If the mass you mean by grams:

0.159 mole x 60.08 g (Periodic table by adding both elements)

Cancel moles with moles (Original moles with the 1 mol at the bottom of the grams) and gives you:

9.55 grams of SiO2

4 0
2 years ago
A chemist forms 16.6 g of potassium iodide by combining 3.9 g of potassium with 12.7 g of iodine. Show that these results are co
bezimeni [28]
3.9 g + 12.7 g = 16.6 g

The sum of the masses of potassium and iodine equals the mass of the product, potassium iodide. The results are consistent with he law of conservation of mass.


Hope this heeeelllllllpppppppp
3 0
3 years ago
What do you think would happen to a rock after billion years?
ANEK [815]

Answer:

Explanation:

It probably would have been broken down to smaller pieces and spread out around the world. Hope this help! :)

3 0
3 years ago
What is the most common ion for cesium ?<br> Cs+1<br> Cs<br> Cs-1<br> Cs-2
alisha [4.7K]
Cs+1
The only common oxidation state is +1.
5 0
3 years ago
Other questions:
  • Using a blow dryer to dry your hair is an example of conduction, convection, or radiation?
    14·2 answers
  • I need help with balancing equations I'm doing homework and idk what to do here can you give me the answers please lol
    14·1 answer
  • Which question is most important to developmental psychology?
    9·1 answer
  • A 96.0 ml volume of 0.25 m hbr is titrated with 0.50 m koh. calculate the ph after addition of 48.0 ml of koh at 25 ∘c.
    14·1 answer
  • The sun supplies about 1.0 kilowatt of energy for each square meter of surface area (1.0 kW/m^2 where a watt = 1 kJ/s) Plants pr
    5·1 answer
  • Which of the following is NOT a sign of a chemical reaction:
    9·2 answers
  • PHMWMHWPTYSM(19 points) ok last question tbh I’m a 90 old man jk lolololololololololololol
    11·1 answer
  • Acid base reaction is called nuetralization reaction why?​
    5·2 answers
  • Please help me out if your good at science:)ill mark brainliest if correct
    10·1 answer
  • What is the area under the curve for the histogram below?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!