How is a physical change different from a chemical change

2 answers:

7 0

There's a few differences. In a physical change the actual substance doesn't change, where in a chemical change with chemical reaction, a new substance is formed. Physical change can be reversed, and chemical change can't.

storchak [24]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

What are flavonoids responsible ?

Travka [436]

Answer:

<h3>Flavonoids are a diverse group of phytonutrients (plant chemical) found in almost all fruits and vegetables. Along with carotenoids they are Responsible for the vivid color in fruit and vegetables. .... Like other phytonutrients flavonoids are powerful antioxidant with anti-inflammatory and immune system benefits.</h3>

6 0

3 years ago

The first step in responding to any sports injury is to __________.

melamori03 [73]

Answer:

remove the danger that lead to injury

Explanation:

The best way is

spot the reason for injury
Then try best to remove that cause as fast as possible.
Then spot the place of body where injury happened
NOW treat for that

4 0

2 years ago

Read 2 more answers

Review please help.

iragen [17]

Answer:

1 and 3

Explanation:

because they are going up from 0

7 0

3 years ago

Laser transmissions travel at a higher speed than the radio waves true or false

uranmaximum [27]

False. Laser transmissions and radio waves are both forms of electromagnetic radiation. Both travel at approximately 3.00 x 10^8 meters per second. This is the case because wavelength and frequency are directly proportional to this value. Although laser light has a shorter wavelength than radio waves, it will travel at the same speed because the frequency will be greater.

6 0

4 years ago

Q 1. How does friction affect the mechanical energy of a system? Q 2. A roller coaster is at the stop of a hill and rolls to the

Vaselesa [24]

Answer:

Friction lowers (decreases) the kinetic energy which in turn decreases the mechanical energy of a system.
At the top of the second hill.

Explanation:

8 0

3 years ago