Which of the following is an example of matter? Question 7 options:

A)

Your thoughts

B)

The air around you

C)

Radio waves

D)

Heat from a fire

The air around you

Explanation:

Matter is defined as anything that has mass and occupy space. Matter may sometimes not be seen with naked eyes.

The decision we had to take on the answer is based on the fact that air has mass and does occupy space.

Air can be trapped in a container and its mass measured hence air is an example of matter.

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml