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
Tomtit [17]
3 years ago
5

Why do metals change in appearance over time?

Chemistry
1 answer:
gogolik [260]3 years ago
5 0

The exterior surface of metal can be changed by many chemical reaction takes place the reaction is carried out by presence of oxygen and water in air which Demage shiny surface of metal. The other processes can also be involved as pollution, moisture and environmental change can also effect on the surface of metal.

If metal is keept in open environment for a long time moisture contents in air boats the corrosion and rusting of metal processes.

Hopefully you will understand.

You might be interested in
What is the percentage of nitrogen in ammonium chloride (NH4Cl)?
Katena32 [7]

Answer:

25%

Explanation:

Ammonium Chloride NH4CI Fertilizer-grade NH4Cl usually contains 25% N. About two-thirds of the world capacity for manufacture of this material is located in Japan, with the remaining one-third situated in India and China.

4 0
2 years ago
Potential and kinetic energy are similar in that -<br>COME ON BESTIES I NEED HELP​
Masja [62]

Answer:

They refer to energy that moves. Kinetic energy is energy that is currently moving. Potential refers to energy that has yet to move, or simply energy in wait

Explanation:

3 0
2 years ago
Read 2 more answers
what is the best course of action if solid material remains in the flask after the heating step of recrystallization
lys-0071 [83]

Answer:

filter the hot mixture.

Explanation:

Solid is stayed undissolved since the arrangement is gotten super saturated. On the off chance that solid molecule is available recrysallization won't happen in this way we need expel the solid molecule by filtarion in hot condition itself . Subsequently, arrangement become totally homogenous and recrysallization item will shaped by moderate cooling

7 0
3 years ago
What is the term for a substance capable of dissolving another substance?
AURORKA [14]

Answer:

The answer to your question is: solvent

Explanation:

Solvent is a component in a solution that is present in the highest amount and is able to dissolve the other or others components.

3 0
3 years ago
Why is bronze considered an alloy?
Serggg [28]
Option B, Bronze is made of the metals copper and tin.

Alloys are essentially materials that consist of two or more metal elements.

-T.B.
3 0
3 years ago
Read 2 more answers
Other questions:
  • In one kind of nuclear reaction, two nuclei fuse, or join together, to form a larger nucleus. This kind of reaction happens only
    14·1 answer
  • What are the 3 primary consumers and what are the 3 secondary consumers
    5·1 answer
  • Given that the molar mass of NAOH is 40.00G/MOL, what mass of NAOH is needed to make 2.500 L of a 2.000 M NaOH Solution?
    12·1 answer
  • Four students wrote different analogies to describe an electron before the formation of an ionic bond.
    8·2 answers
  • Which of the following pairs of elements could possibly be in the same group? X has a 1+ ion; Y has a 1- ion. X tends to form a
    14·2 answers
  • What property of matter best describes the way a typical alcohol thermometer works?
    7·1 answer
  • 2. What happens to the heat in an exothermic reaction?
    8·1 answer
  • How did technology impact the development of the cell theory?
    5·1 answer
  • _BF3 + ___Li2SO3 --&gt;
    15·1 answer
  • How many grams of mercury are present in a blood device that holds 6.9mL of mercury
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!