INTRODUCTION TO CHEMISTRY 5TH EDITION
COMPREHENSIVE SOLVED QUESTIONS AND
COMPLETE ANSWERS
◉ proton.
Answer: positive particle in the nucleus, weighs the same as
neutrons
◉ electron.
Answer: negative particle in an atom, found outside the nucleus in
the space surrounding, weighs less than the other subatomic
elements, involved in forming chemical bonds
◉ neutron.
Answer: neutral particle in the nucleus, weighs the same as the
protons
◉ element.
Answer: a pure substance containing only one type of atom. Ex.
Hydrogen, Helium, Lithium
◉ compound.
,Answer: Substance formed by the chemical joining of two or more
elements in definite amounts. The physical and chemical properties
are usually very different from those of the elements from which it is
formed
◉ ion.
Answer: an atom that gains or loses electrical charge
◉ ionic bond.
Answer: bond formed when one or more electrons are transferred
from one atom to another
◉ covalent bond.
Answer: bond that shares electrons between atoms (mostly between
two non-metals)
◉ positive ion.
Answer: type of ion that forms when an atom loses electrons
◉ negative ion.
Answer: type of ion that forms when an atom loses electrons
◉ solution.
, Answer: mixture where which the substances are evenly spread out
◉ solvent.
Answer: does the dissolving, like water is to salt
◉ acid.
Answer: substance that forms a high concentration of hydrogen ions
(H+)in water. Has a pH less than 7
◉ base.
Answer: solutions that have more (OH-) ions in water. Has a pH
greater than 7
◉ pH scale.
Answer: scale the goes from 0-14. Reads how many hydrogen ions
(H+) are in a solution.
◉ neutral.
Answer: ph of 7. Example pure water
◉ chemical reaction.
Answer: changing one set of chemicals into another set of chemicals
by breaking and forming bonds
COMPREHENSIVE SOLVED QUESTIONS AND
COMPLETE ANSWERS
◉ proton.
Answer: positive particle in the nucleus, weighs the same as
neutrons
◉ electron.
Answer: negative particle in an atom, found outside the nucleus in
the space surrounding, weighs less than the other subatomic
elements, involved in forming chemical bonds
◉ neutron.
Answer: neutral particle in the nucleus, weighs the same as the
protons
◉ element.
Answer: a pure substance containing only one type of atom. Ex.
Hydrogen, Helium, Lithium
◉ compound.
,Answer: Substance formed by the chemical joining of two or more
elements in definite amounts. The physical and chemical properties
are usually very different from those of the elements from which it is
formed
◉ ion.
Answer: an atom that gains or loses electrical charge
◉ ionic bond.
Answer: bond formed when one or more electrons are transferred
from one atom to another
◉ covalent bond.
Answer: bond that shares electrons between atoms (mostly between
two non-metals)
◉ positive ion.
Answer: type of ion that forms when an atom loses electrons
◉ negative ion.
Answer: type of ion that forms when an atom loses electrons
◉ solution.
, Answer: mixture where which the substances are evenly spread out
◉ solvent.
Answer: does the dissolving, like water is to salt
◉ acid.
Answer: substance that forms a high concentration of hydrogen ions
(H+)in water. Has a pH less than 7
◉ base.
Answer: solutions that have more (OH-) ions in water. Has a pH
greater than 7
◉ pH scale.
Answer: scale the goes from 0-14. Reads how many hydrogen ions
(H+) are in a solution.
◉ neutral.
Answer: ph of 7. Example pure water
◉ chemical reaction.
Answer: changing one set of chemicals into another set of chemicals
by breaking and forming bonds
