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
Licemer1 [7]
3 years ago
9

What is true of a physical change

Biology
2 answers:
Citrus2011 [14]3 years ago
7 0
A physical change occur when objects or substances undergo a change that does not change in which the composition of a substance changes or one or more substances combine or break up from new substances.
mafiozo [28]3 years ago
3 0

Answer:

It is that type of change in which no chemical reaction takes place.

Explanation:

Physical change:1.It is type of change in which  no chemical reaction takes place.

2.In physical change , one substance does not change in other substance.

3.Form of matter may be change.Example water.

When water is change into ice or steam.It is not a chemical change .it is physical change.

4.Size or shape of matter may be changed.

5.Physical changes are usually reversible.

You might be interested in
DNA within the cell is wrapped around nucleosomes to form chromatin. When chromatin is in the form of a 30 nm fibril, how many c
vodomira [7]

Answer:

The correct answer is option b. "20 H1, 40 H2A".

Explanation:

Chromatin is a complex that protects and condenses the genetic material comprised of DNA and proteins. When chromatin is in the form of a 30 nm fibril, nucleosomes have a regular positioning along the DNA. This means that each nucleosome is associated with a single H1 molecule. Therefore a chromatin containing 20 nucleosomes will have 20 copies of H1 and 40 copies of H2A, because each nucleosome has 2 copies of the core histone H2A.

8 0
3 years ago
PLEASE HELP ME
AnnyKZ [126]

PLASMA IS POSITIVELY AND NEGATIVELY CHARGED NOT GAS

6 0
3 years ago
Read 2 more answers
What is the difference between an embryo and a foetus
earnstyle [38]

Answer:

An embryo is the early stage of human growth in which the vital body structures of organs are developed. In the 11th week of pregnancy, which is the 9th week of development after egg fertilization, an embryo is considered a fetus.

Explanation:

4 0
2 years ago
Read 2 more answers
Bubble in All correct statements below regarding comparing eukaryotes and prokaryotes cells
yan [13]

What are the statements?

4 0
3 years ago
Read 2 more answers
Repeating the experiment multiple times
nalin [4]

Answer:

C) Practicing good scientific method and practices.

Explanation:

The text states, "repeating the experiment multiple times," as well as other preparations that a good scientist uses.

Doing something multiple times over is a good sign of a good scientific method.

Taking careful measurements, having several researchers run the same experiment, and only testing one variable at a time are all good practices that a scientist should use.

<em> </em><em><u>The</u></em><em><u> </u></em><em><u>correct</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>C</u></em><em><u>)</u></em><em><u>.</u></em>

7 0
3 years ago
Read 2 more answers
Other questions:
  • A pea plant with round seeds has the genotype rr. if you cross this plant with a wrinkled-seed plant, genotype rr, what is the p
    11·1 answer
  • Susan wants to see how different chemicals in the soil affect plant growth. Therefore, she gets all of the same type of plant, s
    13·2 answers
  • A biologist ground up some plant leaf cells and then centrifuged the mixture to fractionate the organelles. Organelles in one of
    8·1 answer
  • Which of these make up the vascular tissue
    5·2 answers
  • An aquarist takes half of the fish out of a tank, and the remaining fish grow larger and are healthier. Which
    7·1 answer
  • Which description bets fits the definition of behavior?
    6·1 answer
  • Identify the plant tissues in the three images.<br> А<br> B<br> C
    8·1 answer
  • A chick becomes a chicken over a period of several<br> weeks.
    8·1 answer
  • Name the 2 types of muscle
    9·2 answers
  • Electrons have a small: <br> shell around them <br> positive charge <br> negative charge
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!