If you are riding on a bus with a friend, you can tell you are
moving by observing the motion of

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

Which statement correctly describes the interaction between magnetic poles? north and south poles attract each other. north and south poles repel each other. two north poles will attract each other. two south poles will attract each other.

Why do metals "give up" their valence electrons?