The burning gases of the sun are matter in the gaseous state, whereas the ground you walk on is matter in the state.

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Identify the electromagnets with poles that are reversed from the electromagnet shown above