Which of these are ionic compounds? check all that apply.
nh4cl
so2
fcl
kf
nh3
mgo

__can be defined as which velocity changes

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

Drug abuse will not lead to physical and psychological dependence. true or false ?