50.0 grams of a pure gaseous compound was found to contain 25 grams of oxygen. What is the percentage by weight of oxygen in this compound? Answer in units of %

Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right

Which of the following is most likely true about water in chemical solutions?

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.