Questions and Answers
Match the following chemistry concepts with their descriptions:
Atom = Basic unit of matter Molecule = Two or more atoms bonded together Compound = Substance composed of two or more elements Chemical reaction = Process that rearranges the molecular structure of a substance
Match the following chemical elements with their symbols:
Hydrogen = H Oxygen = O Carbon = C Nitrogen = N
Match the following types of chemical bonds with their descriptions:
Covalent bond = Sharing of electron pairs between atoms Ionic bond = Electrostatic attraction between oppositely charged ions Metallic bond = Sharing of delocalized electrons in a metal lattice Hydrogen bond = Weak attraction between a hydrogen atom and an electronegative atom
