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
Aliun [14]
3 years ago
14

If a metal changes color over time from exposure to air, what has likely occurred?

Chemistry
1 answer:
natita [175]3 years ago
3 0

Answer:

Option A. a chemical change

Explanation:

A chemical change is a change in which new substance is formed and can not be easily reversed. A change of metal color when exposed to air for a long time is simply called rusting. This is a chemical change as new substance is formed. This can be seen when Zn roofing sheets changes color over time on exposure to air.

You might be interested in
Write down the molecular formula and molecular weight of carbon dioxide . ​
Finger [1]

Answer:

CO2

Molar mass: 44.01 g/mol

Explanation:

CO2

3 0
3 years ago
Which term is defined as “anything that has mass and occupies space”? a -compound b - element c - substance d - matter
Dima020 [189]
The answer is matter
4 0
3 years ago
The products
alexandr1967 [171]

Answer:

The products  of self-ionization of water are OH⁻ and H⁺.

Explanation:

  • The water is self ionized according to the equation:

<em>H₂O → OH⁻ + H⁺. </em>

<em></em>

The ionic product for water (Kw) = [OH⁻][H⁺] = 10⁻¹⁴.

Kw is also called "self-ionization constant" or "auto-ionization constant".

6 0
3 years ago
What two quantities must be known to calculate the density of a sample of matter? A) mass and volume B) length and mass C) size
Svetradugi [14.3K]

Answer:

A

Explanation:

4 0
3 years ago
Read 2 more answers
I need to know the answer to that
Tresset [83]

im not sure which one to answer, and i can hardly see the text.

8 0
3 years ago
Other questions:
  • Can an element with eight valence electrons still be reactive?
    11·1 answer
  • Chem help please. i cant figure out this problem
    7·1 answer
  • How many valence electrons does a neutral atom of Argon have
    7·1 answer
  • 1. What is the definition of the word "petition"?
    6·2 answers
  • What is the limiting reactant and theoretical yield if 0.483 mol of Ti and 0.911 mol Clare used in this reaction: Ti + 2Cl2 → Ti
    15·1 answer
  • Density measurements were conducted on a 22.5oC sample of water which had a theoretical density of 0.997655 g/ml. A volume of 10
    7·1 answer
  • Name two kinds of rocks formed by conduction of energy.
    7·1 answer
  • Question 6 (1 point)
    8·1 answer
  • What type of energy conversion is taking place inside a flashlight when it is on?
    9·2 answers
  • Are any other answer correct ? ♈❤️
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!