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
Mkey [24]
3 years ago
14

List the FOUR examples of physical changes shown in the video. Why are these physical changes?

Chemistry
1 answer:
s344n2d4d5 [400]3 years ago
6 0

Explanation:

A physical change is a change that alters the physical properties of matter most especially the state and the form. This change has the following attributes.

  • it is easily reversible
  • leads to the production of no new kinds of matter
  • involves no change in mass
  • requires little energy

Therefore, some of the examples of physical changes are:

  • boiling
  • melting
  • freezing
  • condensation
  • sublimation
  • magnetization of metals
  • breaking of glass
  • cutting of wood
You might be interested in
A precipitate of lead(II) chromate can be formed using the reaction below.
Marina86 [1]

Answer:

hi

Explanation:

7 0
2 years ago
In the following reaction, how many liters of oxygen produce 560 liters of
saw5 [17]

The balanced chemical reaction will be:

CH4 + 2O2 → CO2 + 2H2O

We are given the amount of carbon dioxide to produce from the reaction. This will be our starting point.

 

560 L CH4 ( 1 mol CH4/ 22.4 L CH4 ) (2 mol O2/ 1 mol CH4 ) ( 22.4 L O2 / 1 mol <span>O2</span><span>) = 1120 L O2</span>

7 0
3 years ago
Read 2 more answers
Which of these is an extensive property of a substance?
Sauron [17]

Answer:

I think it is Volume.

Explanation:

An extensive property is a property that depends on the amount of sample present.

4 0
2 years ago
Read 2 more answers
In which environment would a forensic scientist not be found?
mrs_skeptik [129]

The correct answer is D. In a police interrogation room, questioning the suspect.

Explanation:

Forensic scientists are experts who use science as part of criminal investigations. Indeed, the main role of these experts is to deal with the evidence related to the crime to help authorities understand how the crime occurred and who was involved in this.

Because of this, the forensic scientist's role includes collecting evidence, analyzing samples, participating as witnesses in trials, and in some cases teach other experts about techniques. However, forensic scientists cannot interrogate suspects as they only deal with evidence and this process is in charge of the police.

6 0
3 years ago
If a scientist accidentally spills a chemical that causes invalid conclusions, he has made__________________?
iren [92.7K]
It is B) An honest mistake
5 0
3 years ago
Read 2 more answers
Other questions:
  • Work can blank Energy between objects and cause a change in the form of energy
    7·1 answer
  • What is SEAgel help plz
    12·2 answers
  • A 2.00 L container of nitrogen has a pressure of 3.2 atm. What volume would the container be at if the pressure decreased to 1.0
    13·1 answer
  • How to separate a mixture of Sodium chloride (salt) and sugar​
    11·1 answer
  • An autoclave is used to sterilize surgical equipment because
    15·2 answers
  • Which of the following objects would transfer heat by convection?
    5·2 answers
  • Pure nitrogen (N2) and pure hydrogen (H2) are fed to a mixer. The product stream has 40.0% mole nitrogen and the balance hydroge
    14·1 answer
  • Thermal decomposition of 5.00 metric tons of limestone to lime and carbon dioxide requires 9.00 × 106 kJ of heat. Convert this e
    14·1 answer
  • A student calculated the molarity of a solution prepared by dissolving 0.730 mol of table sugar (sucrose, C12H22O11) in 1.8x10^3
    9·1 answer
  • Elemnt name, atomic number, atomic mass, protons, neutrons, elsctrons 1-10
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!