Which of the following is the best hypothesis? O A. Water and Air would be a good name for a rock band. O B. Water is often warmer than air . O C. How much energy do I need to heat 100 g of water from 20°C to 40°C? O D. More energy is needed to heat 100 g of water than to heat 100 g of air.

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:

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).