Due Now HELP PLEASE if you answered I will BrainElist You

An ionic compound can conduct electricity when a it is dissolved in water b its crystals are ground into powder c it is in solid form d it is heated to just below its melting point

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

What kind of waves require a medium to travel? question 6 options: light waves mechanical waves all waves need a medium to travel electromagnetic waves