Ask question

Ask question

All categories

3 years ago

14

What happens to energy during a change of state? Why is it a physical change?

1 answer:

Flura [38]3 years ago

5 0

Answer & Explanation:

Energy is heat. For example, if you boil a cup of water it has more energy than a cup at room temperature. It is considered a physical change because its properties do not change only the state of matter. On the other hand, if wood burns then that is a chemical change because it changes its chemical properties. Please rank as Brainliest if this helps! Thank you!

You might be interested in

Solve - 2 1/3 - ( - 5) =<br> Help me please

gladu [14]

Answer:

7.33

Step-by-step explanation:

3 0

3 years ago

I can never get these answers right omggg I need help!

Alik [6]

Answer:

24-(L times 2) then divide the awnser by 2

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Ms.Omar runs the school tennis club. She has a bin of tennis balls and rackets. For every 5 tennis balls in the bin, there are 3

stepan [7]

Answer:

see the explanation

Step-by-step explanation:

Let

x ----> number of tennis balls

y ----> number of tennis rackets

we know that

To find out the ratio of tennis balls to tennis rackets, divide the number of tennis ball by the number of tennis rackets

In this problem we have

$\frac{x}{y}=\frac{5}{3}$

so

$x=\frac{5}{3}y$

That means

The number of tennis balls is three-fifths times the number of tennis rackets

see the attached figure to better understand the problem

8 0

3 years ago

the jonsons purchased an air conditioner.Should they set the thermostat at 18 degrees Celsius or 50 degrees Celsius

Neko [114]

18 Celsius because it is 64.4 in Fahrenheit which is a natural temperature and 50 is 122 in Fahrenheit which is very hot.
Hope I was helpful!

6 0

3 years ago

9. In a school, there are 120 students in a particular year group. Out of those students, 100 study

Tresset [83]

This does not make any sense I don’t know how to help you out sorry

6 0

3 years ago