Question 25

Physics

1 answer:

aniked [119]2 years ago

7 0

Answer:

o The result of a chemical change is a different composition; in a physical change, the composition remains the same.

Explanation:

In a chemical change, new kinds of matter are produced although the atoms are the same.

For physical changes, no new kinds of matter formed. Only the state of substances changes.

Most chemical changes are usually irreversible
Physical changes are reversible in most parts.
Changes in state and form are salient characteristics of physical changes.
When new products are formed from the reactants, it is an indicator of a chemical change.

You might be interested in

The mass of a basketball is three times greater than the mass of a softball . Compare the momentum’s of a softball and a basketb

Lemur [1.5K]

They are moving the softball of basketball

4 0

3 years ago

Arthur conducts a controlled experiment several times. The results of each test show that his hypothesis is not supported. Which

sladkih [1.3K]

Hello. You did not inform the experiment that Arthur is conducting, which makes it impossible for your question to be answered accurately. However, I will try to help you in the best possible way.

The hypothesis is an assumption that is made before the experiment is carried out. This hypothesis is formed with the observation of some phenomenon of nature where the researcher believes that two or more elements interact to form a result. In this case, the experiment is carried out to determine whether the assumption, that is, the hypothesis is false or true. In the event that an experiment determines that the hypothesis is false, two things may have occurred: (a) the experiment was set up, or analyzed incorrectly, (b) the elements tested have no relation to the observed phenomenon.

3 0

3 years ago

Sam shared with his class that he lives on Oak Street. Sam is likely how old?

Lyrx [107]

D FOUR years old hope this helps

mark brainliest please

4 0

3 years ago

Read 2 more answers

A car is moving in uniform circular motion. If the cars speed were to double to keep the car moving with the same radius the acc

Stells [14]

Answer:

The centripetal acceleration would increase by a factor of 4

Correct choice: B.

Explanation:

Circular Motion

The circular motion is described when an object rotates about a fixed point called center. The distance from the object to the center is the radius. There are other magnitudes in the circular motion like the angular speed, tangent speed, and centripetal acceleration. The formulas are:

$v_t=w\ r$