I need help what’s the answer.

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

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?

What is a for cio3-, the chlorate ion?