4. A gas at standard pressure expands to 45 ml at 225 kPa. What was the original volume?​

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

they are made of gases.

they have a spherical shape.

they make energy through fusion.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.