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
zhenek [66]
2 years ago
11

What do helium (He), neon (Ne), and argon (Ar) have in common?

Chemistry
2 answers:
IrinaK [193]2 years ago
6 0

Answer:

The answer is: D

Explanation:

A. They have the same number of electron energy shells.  Is false, all the elements are in different periods so, they have different number of lectron energy shells.

B. They are all Halogens.  No, is wrong, halogens are F, Cl ,Br

C. They have the same number of electrons.  is wrong, if they had the same number of electrons they must be they same element and they aren't the same.

D. They are all Noble gases. Yes, it's true they are noble gases, they are the first group in the periodic table from the right.

defon2 years ago
3 0

Answer:

D-They are all noble gases

Explanation:

They have the same valency

You might be interested in
The amount of stored chemical energy is what determines the temperature of a substance.
Orlov [11]

Answer:

False

Explanation:

Temperature is also heat energy, so chemical energy has no affect over it.

3 0
2 years ago
Read 2 more answers
How many atoms are in 8 grams of helium
Mrrafil [7]
12 x 10^23 atoms, i hope this helps
8 0
2 years ago
For the formula shown, how many sulfur atoms are represented?
Tatiana [17]

Answer:

i also need the is question help!!!

Explanation:

8 0
2 years ago
Predict what would happen if the ammonium system described in the experiment was heated.
Stella [2.4K]
Answer is: concentration of products increases (ammonia nad water).
Chemical reaction: heat + NH₄⁺ + OH⁻ ⇄ NH₃ + H₂<span>O.
</span>According to Le Chatelier's Principle, the position of equilibrium moves to counteract the change, because heat is increased, system consume that heat, so equilibrium is shifted to right, by decreasing concentration of reaactants and increasing concentration of product.
7 0
2 years ago
How does an indicator differentiate between an acid and base?
Svet_ta [14]

Answer:

that is all I know sorry hope that may help you :)

Explanation:

Indicator is a substance which shows different colors in acidic and basic medium. Indicators can be natural (derived from natural sources) or artificial ( man-made) for example :

*Litmus is an indicator. Acid turns blue litmus into red while base turns red litmus into blue

* Turmeric solution does not show change in color (remains yellow) in acidic solution and turns red in basic solution.

8 0
1 year ago
Other questions:
  • All of the following can be used to define a base except (3 points) Question 1 options: 1) a hydronium ion donor in a reaction 2
    8·1 answer
  • HELP I think its C but I'm not sure
    10·1 answer
  • The ratio of the initial to the final pressure of a given mass of gas is 1:1.5. Calculate the final volume of the gas if the ini
    7·1 answer
  • What do nuclear power plants use as a fuel source? Where is this fuel source obtained?
    14·2 answers
  • In a titration experiment, hcl and lioh solutions were used. the initial volume of hcl was 1.25ml and lioh was 2.65 ml. the fina
    8·1 answer
  • How many protons electrons and neutrons are present in the following atoms​
    7·2 answers
  • An aqueous solution of iron(II) iodide has a concentration of 0.215 molal. The percent by mass of iron(II) iodide in the solutio
    14·1 answer
  • Which is true of an element?
    6·2 answers
  • Plz help asap
    6·1 answer
  • Effect of azeotrope system​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!