Should Bunsen burner be used in a bio safety cabinet?

Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

The excretory system,need answers for all: )