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
Crazy boy [7]
3 years ago
14

So our professor didn't go over this but is freshly cut sodium, but rapidly tarnishes on contact with air a physical or chemical

property?​
Chemistry
1 answer:
Anna35 [415]3 years ago
6 0

Answer:

Hey!

After the slight confusion (haha)...

Your answer should be a CHEMICAL CHANGE / PROPERTY

Explanation:

Its CHEMICAL because the sodium has reacted with the air (oxygen in technical terms) which then forms SODIUM OXIDE...the tarnishing of the cut sodium surface it a thin layer of the SODIUM OXIDE...

HOPE THIS HELPED!

You might be interested in
Write the equilibrium constant expression for the reaction below.
kodGreya [7K]

Answer:

Kc = [H₂S]² . [CH₄] / [ H₂O]⁴ . [CS₂]

Explanation:

The equilibrium constant indicates the % of the yield reaction and can shows where the reaction is going to be equilibrated.

It works with molar concentrations on the equilibrium and it does not consider the solids compounds

Kc also can be modified by the time of the reaction.

This reaction is:

CS₂ (g) + 4 H₂O(g) ⇌ CH₄ (g) + 2H₂S (g)

Kc = [H₂S]² . [CH₄] / [ H₂O]⁴ . [CS₂]

8 0
2 years ago
Watch the animation depicting Rutherford’s experiment and choose which of the following conclusions are correct.a. The atom cont
Lilit [14]

Answer:

a, b, c, d

Explanation:

Rutherford’ atomic model is based on the gold foil experiment. In this experiment, beam of alpha rays was bombarded on thin gold foil. He observed that:

Most of the alpha particles passed through thin foil without any deflection.

Few alpha particles deflected by an angle of 90o.

Based on observation, Rutherford concluded that majority of the space inside the atom is empty.

He explained defection of few alpha particles by assuming that most of the mass is concentrated at the nucleus and positively charged.  

Therefore, among given, the correct statements are:

The atom contains a positively charged nucleus.

Positive charge is condensed in one location within the atom.

The majority of the space inside the atom is empty space

The mass of an atom is concentrated at the nucleus

Therefore, the correct options are:

a, b, c, d

4 0
3 years ago
What is the best definition
Ann [662]

Answer:

B.

Explanation:

thermal expansion♡

7 0
2 years ago
Read 2 more answers
What are the major reservoirs for sulfur
lapo4ka [179]

Answer:

the ocean, the ocean floor basalts, evaporite deposits and reduced marine sediments.

Explanation:

7 0
2 years ago
Compounds have two or more
frozen [14]

Answer: B

Explanation:

6 0
3 years ago
Other questions:
  • What is the mass (in grams) of 9.42 × 1024 molecules of methanol (CH3OH)?
    15·2 answers
  • PLS HELP ASAP!! Why is titanium known as a strategic metal??
    11·1 answer
  • Comets orbit in short, circular paths around the sun.<br><br> Is this true or false..? Thank you!
    5·2 answers
  • The following animals is an endotherm? A. grasshopper B.horse C.lizard D.snake
    15·1 answer
  • What do all ions have in common in terms of their electrical structure?????
    8·1 answer
  • Martian periodic table
    9·1 answer
  • Please help I will mark you brainiest
    5·1 answer
  • Which of the following is not an amphoteric substance?
    14·1 answer
  • Which of these materials is a substance?
    11·1 answer
  • If AB = 5 inches and AD = 8, find BD. Round to the nearest tenth if necessary.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!