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
lapo4ka [179]
3 years ago
9

What element has the atomic number 11

Chemistry
2 answers:
andreev551 [17]3 years ago
5 0
Neon I think. Go to the periodic table and see which one is the 11th
shusha [124]3 years ago
4 0
Sodium is the answer
You might be interested in
The disturbance of a supersaturated solution will cause
Flura [38]
The disturbance of a supersaturated solution will cause precipitation. A supersaturated solution is a solution that contains more solute than the solvent can dissolve. When this type of solution is disturbed like when it is moved, the formation of a solid is observed immediately.
3 0
3 years ago
A 0.245-L flask contains 0.467 mol co2 at 159 °c. Calculate the pressure using the ideal gas law.
lubasha [3.4K]

Answer:

Pressure, P = 67.57 atm

Explanation:

<u>Given the following data;</u>

  • Volume = 0.245 L
  • Number of moles = 0.467 moles
  • Temperature = 159°C
  • Ideal gas constant, R = 0.08206 L·atm/mol·K

<u>Conversion:</u>

We would convert the value of the temperature in Celsius to Kelvin.

T = 273 + °C

T = 273 + 159

T = 432 Kelvin

To find the pressure of the gas, we would use the ideal gas law;

PV = nRT

Where;

  • P is the pressure.
  • V is the volume.
  • n is the number of moles of substance.
  • R is the ideal gas constant.
  • T is the temperature.

Making P the subject of formula, we have;

P = \frac {nRT}{V}

Substituting into the formula, we have;

P = \frac {0.467*0.08206*432}{0.245}

P = \frac {16.5551}{0.245}

<em>Pressure, P = 67.57 atm</em>

4 0
3 years ago
Cooling the concentrated ammonia and hydrochloric acid before carrying out the experiment increased the time taken for the white
Crazy boy [7]
Hope it helps you :)

8 0
3 years ago
(11) Indicate which of the following atomic models best fits the atomic model of
Rzqust [24]
Dnndhdfbbdhdhxbfbdbbds
6 0
3 years ago
HELP PLEASE DUE SOON!!!
marishachu [46]

Answer: 129.93577

Explanation:

There-

6 0
3 years ago
Other questions:
  • It is a large body of air that has the same properties as the Earth's surface over which it develops.what is it?
    15·1 answer
  • What does centripetal force mean?
    8·1 answer
  • I need Friend.<br><br><br><br><br><br>Follow me<br>​
    9·2 answers
  • There are different atoms and each type of atom is called an​
    11·1 answer
  • Aldehydes may oxidize to form:
    11·2 answers
  • Compounds X has the formula C7H15Cl; Y is C7H15Br. X undergoes base-promoted E2 elimination to give a single alkene product Z. Y
    9·1 answer
  • Is radium usually considered as part of the alkaline earth category in terms of chemistry?
    9·1 answer
  • 1. How many molecules of water make up 1.00 MOLE?<br>I need how to solve it please.​
    5·1 answer
  • Is chlorine a substance or a mixture
    6·1 answer
  • What mass of sugar and water is needed to make 40 g of 10% solution?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!