Any chemistry peeps out here? i need some !

one liter of 3 m naci has how many moles of naci

(writing this down, this could be a trick question; ; ; but i just want to make sure? ? i can't even think straight )

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?