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
NARA [144]
2 years ago
15

when a log of wood burns, it undergoes a _______. a. physical change. b. chemical change. c. physical and a chemical change. d.

no physical or chemical change.
Chemistry
2 answers:
AlexFokin [52]2 years ago
6 0

B. chemical change because a new substance is forming with new properties.

statuscvo [17]2 years ago
3 0
B. Chemical change is the answer!<span />
You might be interested in
Bodies at _____ tend to remain at rest.
Klio2033 [76]

Answer:

C.

Explanation:

Newton's 3rd law of motion: Inertia. It states that bodies at rest tend to stay at rest.

8 0
2 years ago
Read 2 more answers
PLEASE HELP WORTH 50 POINTS NO LINKS I WILL MARK CORRECT ANSWER BRAINLIEST!!! complete this punnet square, enter your answer in
Dafna1 [17]

Answer:

ooooooooop

Explanation:

6 0
3 years ago
When an electron in a quantum system drops from a higher energy level to a lower one, the system __
icang [17]

When an electron in a quantum system drops from a higher energy level to a lower one, the system<u> emit a photon.</u>

<u />

The energy of the electron drops when it transitions levels, as well as the atom releases photons. The emission of the photon occurs as the electron transitions from an energy state to a lower state. The photon energy represents precisely the energy that would be lost when an electron moves to a level with less energy.

When such an excited electron transitions from one energy level to another, this could emit a photon. The energy drop would be equivalent to the power of the photon that is released. In electron volts, the energy of an electron, as well as its associated photon (emitted or absorbed) has been stated.

Therefore, when an electron in a quantum system drops from a higher energy level to a lower one, the system<u> emit a photon.</u>

<u />

To know more about electron

brainly.com/question/1255220

#SPJ4

<u />

4 0
1 year ago
The process in which water changes from a liquid to a vapor is known as __________.
Basile [38]
Hello!
The answer is Evaporation!

When you add enough heat to a liquid, it boils turning into a gas. This is called Evaporation
7 0
3 years ago
Read 2 more answers
For any molecule at the surface the resulting surrounding forces equal zero
Katarina [22]
False is the correct answer
4 0
2 years ago
Read 2 more answers
Other questions:
  • Im teaching myself chemistry and need a guide. anyone game?
    15·1 answer
  • Under what circumstances will a scientific theory be changed or discarded? A. New experimental evidence is not compatible with t
    11·2 answers
  • Which molecule could form a coordinate covalent bond with a proton (h )?
    12·2 answers
  • HELP UNDERSTAND, PLEASE!
    14·2 answers
  • 3. Which of these statements is an accurate description of the ionization energies of elements in the periodic table?
    15·1 answer
  • Marcus read that systems provide feedback, or the return of information. Feedback can either cause a change in the system or kee
    6·1 answer
  • 20 <br> very very very very very very very very hard
    9·1 answer
  • Name three instructions that DNA provides to a cell
    11·2 answers
  • Which are charateristics of all metals
    5·2 answers
  • Apply your knowledge of atomic theory to determine The number of protons contained in a neutral Adam of palladium that has 46 el
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!