Why are lab apparatus made of ceramics

What is the oxidation state of an individual bromine atom in nabro3?

How much carbon is stored in the atmosphere as co2

What is the importance of interlocking the fingers and rubbing while washing hands? the palms are the dirtiest parts of the hands. the spaces between the fingers get washed. the backs of the hands get washed. the fingernails are the dirtiest parts of the hands