Can you pls help me out

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

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

Apush or pull that moves or changes and object when to objects touch