17pts Can someone fill in all the blanks for the elements it asks for? Not sure if my answers are right or not

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

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?

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?