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
babymother [125]
3 years ago
15

Which element is the least reactive? Neon, Chlorine, Gallium or Tin

Chemistry
2 answers:
Katen [24]3 years ago
7 0
Noble gases are supposed to be the least reactive elements so I’m assuming Neon would be the most least reactive out of all of them.
Ksenya-84 [330]3 years ago
4 0
Neon is the one look at the period table
You might be interested in
Write the electron configuration (ground and excited states) for element with atomic number 16 ?
Talja [164]
2, 8,6 because it has to be in a configuration of 2,8,8
3 0
3 years ago
Which of the following actions will not increase the rate at which a solid dissolves in
aliya0001 [1]

Answer:

O lowering the temperature of the system

5 0
3 years ago
Plz tell me if I'm correct I am terrible at science if I'm not correct me plz correct me!!! I promise I'll give brainliest!!! Oh
adell [148]

Answer:

You are mostly correcet but im pretty sure that the nonmetals are brittle because they can break easily

Explanation:

5 0
3 years ago
A 118-ml flask is evacuated and found to have a mass of 97.129 g. when the flask is filled with 768 torr of helium gas at 35 ?c,
Inessa05 [86]
The full question asks to decide whether the gas was a specific gas. That part is missing in your question. You need to decide whether the gas in the flask is pure helium.

To decide it you can find the molar mass of the gas in the flask, using the ideal gas equation pV = nRT, and then compare with the molar mass of the He.

From pV = nRT you can find n, after that using the mass of gass in the flask you use MM = mass/moles.

1) From pV = nRT, n = pV / RT

Data:
V = 118 ml = 0.118 liter
R = 0.082 atm*liter/mol*K
p = 768 torr * 1 atm / 760 torr = 1.0105 atm
T = 35 + 273.15 = 308.15 K

n = 1.015 atm * 0.118 liter / [ 0.082 atm*liter/K*mol  * 308.15K] =0.00472 mol

mass of gas = mass of the fask with the gas - mass of the flasl evacuated = 97.171 g - 97.129 g = 0.042

=> MM =  mass/n = 0.042 / 0.00472 = 8.90 g/mol

Now from a periodic table or a table you get that the molar mass of He is 4g/mol

So the numbers say that this gas is not pure helium , because its molar mass is more than double of the molar mass of helium gas.
7 0
3 years ago
How can you identify gas in a chemical reaction without observing the atoms or molecules?
nikitadnepr [17]

Answer:

There are five signs of a chemical change:

Colour Change.

Production of an odour.

Change of Temperature.

Evolution of a gas (formation of bubbles)

Precipitate (formation of a solid).

5 0
2 years ago
Other questions:
  • List the three components of traditional cell theory.
    5·2 answers
  • What fraction of a 0.5 m acetic acid solution will be in the protonated form at ph 5.1? The pka of acetic acid is 4.8?
    14·1 answer
  • What is the concentration of hydroxide ions in pure water at 30.0 ∘C, of Kw at this temperature is 1.47x10-14?
    13·1 answer
  • When two molecules of methanol (CH3OH) react with oxygen, they combine with three O2 molecules to form two CO2 molecules and fou
    10·1 answer
  • The existence of isotopes violates one of the original ideas of Dalton's atomic theory. Which one?
    5·1 answer
  • Please help me please
    12·1 answer
  • How did elements get to earth?
    7·1 answer
  • Help me as quickly as possible
    13·1 answer
  • 3. Hypothesize Earth systems interact with
    11·1 answer
  • Will favor dissolution and
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!