When heated, KClO3 decomposes into KCl and O2. If this reaction produced 68.4 g KCl, how many grams of O2 were produced

How many neutrons does a atom of cobalt have?

Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.

Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.