Phosphine, ph3(g), decomposes according to the equation 4ph3(g) --> p4(g) + 6h2(g) the kinetics of the decomposition of phosphine at 950 k was followed by measuring the total pressure in the system as a function of time. the data to the right were obtained in a run where the reaction chamber contained only pure phosphine at the start of the reaction.

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

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

When a scientific theory has been tested and proved by the scientific community, it becomes a law