How many liters of oxygen can be made from the decomposition of 325.0 g hydrogen peroxide at .980 atm and 26°C

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

Jose and eric were given four samples in lab. the results of their analysis are shown in the table. based on the data they collected, which sample is most likely a metal?