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
Harman [31]
4 years ago
12

Which of the following is an irreversible physical change?

Chemistry
1 answer:
Yuliya22 [10]4 years ago
3 0

Answer:

b) sharpening a pencil

Explanation:

If you melt lead, boil water, or dissolve sugar in water, you can return all of them back to their original state. If you sharpen a pencil, you can't reattach the shavings as they were originally.

You might be interested in
13. What would you expect the pH of an aqueous solution of tertiary bromide in water to be (acidic, neutral, or basic)
vampirchik [111]

Answer:

oshfjidgshsjdh

Explanation:

918474828

3 0
3 years ago
A device that does work in a circuit is called what ?
zavuch27 [327]
These are called resistors. 
7 0
3 years ago
Read 2 more answers
Which of the following is a true statement about the water cycle?
Serggg [28]
I think its C: due to mixing and oceanic.....
3 0
3 years ago
Why is it important for a measurement system to have an international standard ?
Ray Of Light [21]

Answer:

Mark me brainliest

Explanation:

Standards help avoid confusion and ambiguity when taking measurements. For example, a meter will always be the same length, no matter who is taking the measurement or where it is being taken.

4 0
3 years ago
PLEASEEE HELPP I BEGG FOR HELPPP
Basile [38]

Answer:

An element that is oxidized is a reducing agent, because the element loses electrons, and an element that is reduced is an oxidizing agent, because the element gains electrons.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone plz help me with Visualize it! 5 plz I will mark them Brainliest
    12·1 answer
  • True or False: A chemical formula is a representation of the smallest unit of a compound
    13·2 answers
  • If 82.3 l of an ideal gas is cooled from 46 degrees calius to -166 what will the volume of the gas become
    6·1 answer
  • What is the chemical agent mixed with feces to determine if blood is present
    15·2 answers
  • The solubility of a gas in water is 0.22 g/L at 20.0 kPa of pressure. What is the solubility when the pressure is increased to 1
    5·1 answer
  • 1. How many moles of oxygen gas are required to react with 15.56 moles of hydrogen gas? (2 pts.)
    10·1 answer
  • PLZ PLZ PLZ PLZ HELPPPP!
    15·1 answer
  • A sailboat is pushed by a steady wind with a force of 4000 N. Its acceleration is 2
    9·1 answer
  • What gas gets in and what gas get out of the body?
    10·2 answers
  • (need help asap)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!