Ammonia NH3 percentage composition​

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

Displacement is the slope of a velocity vs. time graph a. true b. false

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate