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
Rashid [163]
3 years ago
5

Please help!!!!!!!!!!

Chemistry
1 answer:
scZoUnD [109]3 years ago
4 0

Answer:

<h2>true</h2>

yes, friend it is positive

You might be interested in
Please help me! This is too hard!?
Annette [7]

Answer: 59.24 atm

Explanation:

Given that:

Original Volume of gas V1 = 2.7L

Temperature T1 = 42.7°C

Convert Celsius to Kelvin

(42.7°C + 273 = 315.7K)

Pressure P1 = 684.9 torr

Final Volume V2 = 0.14 L

Final temperature T2 = 803.1°C

Convert Celsius to Kelvin

(803.1°C + 273 = 1076.1K)

Final pressure = ?

Then, apply the combined gas equation

(P1V1)/T1 = (P2V2)/T2

(684.9 torr x 2.7L)/315.7K = (P2 x 0.14L)/1076.1K

1849.23/315.7 = 0.14P2/1076.1

Then, cross multiply

1849.23 x 1076.1 = 315.7 x 0.14P2

1989956.403 = 44.198P2

Divide both sides by 44.198

1989956.403/44.198 = 44.198P2/44.198

45023.67 torr = P2

Now, convert the pressure in torr to atmosphere

If 760 torr = 1 atm

45023.67 torr = Z atm

Then, cross multiply

760 torr x Z = 45023.67 torr x 1 atm

Z = 45023.67 torr / 760 torr

Z = 59.24 atm

Thus, the new pressure of the gas will be 59.24 atm

5 0
4 years ago
A sample of N2O effuses from a container in 47s .
malfutka [58]

Answer:

112.92 s.

Explanation:

Let M₁ be the molar mass of N₂O

Let t₁ be the time taken for N₂O to effuse.

Let M₂ be the molar mass of I₂

Let t₂ be the time taken for I₂ to effuse.

Molar mass (M₁) of N₂O = (14×2) + 16 = 28 + 16 = 44 g/mol

Time (t₁) of effusion of N₂O = 47 s

Molar mass (M₂) of I₂ = 127 × 2 = 254 g/mol

Time (t₂ ) of effusion of I₂ =?

The time take for the same amount of I₂ to effuse can be obtained as follow:

t₂/t₁ = √(M₂/M₁)

t₂/47 = √(254 / 44)

Cross multiply

t₂ = 47 × √(254 / 44)

t₂ = 112.92 s

Therefore, it will take 112.92 s for the same amount of I₂ to effuse.

7 0
4 years ago
Second time posting this, help asap, please :( Will give a brainliest!
nlexa [21]

Answer:

Reduction half

Fe2+ +2e -------> Fe

Oxidation half

Mn-----> Mn4+. +4e

Explanation:

Oxidation is loss of electron and reduction is gain of electron

6 0
3 years ago
Will mark as brainiest if it is correct!
Katen [24]

Answer:

i am very sorry i have no answer but if i get one i can tell u the answer

Explanation:

6 0
3 years ago
What might be useful for adding solids to a tube
vagabundo [1.1K]
C funnel because the funnel would have a large enough entrance to put a solid through
7 0
4 years ago
Other questions:
  • What’s the symbol for nitrogen
    13·2 answers
  • Rewrite the equation below using the correct conventions for stoichiometric coefficients. 2 BaCl2 + 2 H2SO4 → 2 BaSO4 + 4 HCl
    8·1 answer
  • What are the charge and mass of the three subatomic particles​
    6·1 answer
  • Who willing to talk on my question for a couple of seconds
    9·1 answer
  • What is the last step in the scientific method?
    9·1 answer
  • According to the Vaporization Heat table, the heat needed for 1 mol of H2O to evaporate at 100°C is 40.7KJ and 44.0KJ/mol is nee
    15·1 answer
  • Moving electrons are known as ______.
    10·1 answer
  • Help!!!!!!!!!!!!!! PLEASE DONT JUST ANSWER SOMETHING UNRELATED FOR POINTS I NEED HELP
    8·2 answers
  • 7th grade SCIENCE PLEASE HELP ​
    12·1 answer
  • Protons and neutrons have opposite, but equal magnitude, charges. An atom contains the same number of protons and electrons Neut
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!