Asample of a compound contains 9.11 g ni and 5.89 g f. what is the empirical formula of this compound?
a.) nif
b.) ni3f2
c.) nif2

Which of these will change if the air in aclosed bottle is heated? abcdthe mass of the airthe composition of the airthe air pressure in the bottlethe number of air molecules in the bottle

Two things that biomedical has invented or innvated

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.