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
serg [7]
3 years ago
12

describe the difference between a physical and a chemical change and explain what happens during a chemical reaction

Physics
1 answer:
BARSIC [14]3 years ago
4 0

There are several differences between a physical and chemical change in matter or substances. A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.

You might be interested in
The human activities in two locations are described below:
Bogdan [553]
Air pollution level is higher in Location B, because poisonous fumes are produced when coal burns.
5 0
3 years ago
Read 2 more answers
In the formula V = TR, the "I" means <br>O static charge <br>O current <br>O isotope<br>O immunity​
Leokris [45]

Answer:

b is correct answer it I'd correct

8 0
2 years ago
Read 2 more answers
Which statement is true of equinoxes? They occur in June and December. Days and nights are equal in length everywhere. The lengt
Zanzabum
<span>Days and nights are equal in length everywhere.(gradpoint)</span>
8 0
3 years ago
Read 2 more answers
1. Is the relationship between velocity and centripetal force a direct, linear relationship or is it a nonlinear square relation
Svetllana [295]

Answer:

non linear square relationship

Explanation:

formula for centripetal force is given as

a = mv^2/r

here a ic centripetal acceleration , m is mass of body moving in circle of radius r and v is velocity of body . If m ,and r are constant we have

a = constant × v^2

a α v^2

hence non linear square relationship

7 0
3 years ago
Which of the following ocean motions are powered by the wind? waves tides surface currents deep ocean currents
Effectus [21]

At the entrance of most beaches, there is a bulletin board with notices about water conditions: maybe a faded sign warning about rip currents and a list of this week's tide tables. Most people pass them by without a second thought, but if you want to enter the ocean, it is important to know its movements, whether to avoid being caught in a riptide or to figure out when the waves will be at their best.


Hope this helps


3 0
3 years ago
Read 2 more answers
Other questions:
  • The radius of curvature is smaller at the top than on the sides so that the downward centripetal acceleration at the top will be
    12·1 answer
  • Which product is typically made using soft wood
    11·2 answers
  • During maneuvers preceding the Battle of Jutland, the British battle cruiser Lion moved as follows (in nautical miles): 1.2 mile
    6·1 answer
  • A 16.0 Ω, 13.0 Ω, and 7.00 Ω resistor are connected in parallel to an emf source. A current of 6.00 A is in the 13.0 Ω resistor.
    15·2 answers
  • How do the four rocky planets comapre to the four gas giants in size?
    14·2 answers
  • Light with a wavelength of 612 nm incident on a double slit produces a second-order maximum at an angle of 25 degree. What is th
    15·1 answer
  • What are two main types of friction
    15·2 answers
  • 2 H2O2-&gt; 2H20+02
    8·1 answer
  • Atoms with certain characteristics are radioactive. Which of those below will
    7·1 answer
  • . A certain sample of metal has a mass of 3 kg and a volume of 250 cm3. What is its density?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!