Which statement is true about a polyatomic ion? It forms metallic bonds with other ions. It forms covalent bonds with other ions. It is made of atoms that are covalently bonded together. It has a charge that is distributed over only part of the ion.

Certification programs are offered by all of the following except

How are brightness and size related when it comes to stars

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.