Directions: Convert the following word equations into formula equations by changing element and compound names into chemical formulas

The excretory system,need answers for all: )

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium