(I already know the answer but we have to show work... so please explain how do do this... thank you!!! ) List the following gases in order of increasing average molecular velocity at 25 degrees Celcius: H20, He, HCl, BrF, and NO2​

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.

Which element is the least metallic between cadmium, silver, zinc, or iron?

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j