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BSC 114 Exam 1 Questions And Answers
100% Pass
A ______ is two or more elements combined together in a fixed ratio. - ANS Compound
Electrons in the outermost shell of an atom are called the ______ electrons. - ANS Valence
A type of covalent bond where one atom is more electronegative than the other atom. -
ANS Polar
anything that takes up space and has mass - ANS matter
Water loving substances - ANS hydrophilic
a type of subatomic particle in the nucleus of an atom
that is neutral - ANS neutron
The exchange and sharing of electrons between
atoms is called ___________ reactions. - ANS chemical
In a _____ bond, there is the actual loss and gain of
electrons - ANS ionic
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When two forms of a given element have the same
atomic number but different atomic weights, they are said to be _____ of each other -
ANS isotopes
atomic _________ = the number of protons - ANS number
The dissolving agent of a solution - ANS solvent
When a radioactive isotope decays, this leads to a
change in the number of protons in the nucleus, thus transforming the atom to an atom of a
different _________. - ANS element
The substance that is dissolved in a solution - ANS solute
Substances that resist changes in pH - ANS buffers
A substance that is nonpolar and will not readily
dissolve in water - ANS hydrophobic
Basic solutions can also be referred to as______. - ANS alkaline
When molecules of water move fast enough they can
overcome the attractions they have for each other and a liquid can become a gas. This is called
____ - ANS evaporation
cannot be broken down to another substance by chemical means - ANS element
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Positively charged particles in the nucleus of an atom. - ANS proton
When two atoms of the same element are in a covalent bond, we can assume that this is a
______ covalent bond. - ANS nonpolar
When two atoms of the same element are in a covalent bond, we can assume that this is a
______ covalent bond. - ANS mass
A weak type of bonding that occurs when a hydrogen atom is covalently attached to one
electronegative atom, such as water, and is also attached to another electronegative atom -
ANS hydrogen
when water freezes, it ___________ in volume - ANS increases
A type of subatomic particle that has a neglible atomic mass - ANS electron
Sharing of a pair of valence electrons between two atoms is a ______ bond - ANS covalent
Isotopes that do not loose particles are said to be ______. - ANS stable
The most electronegative element. - ANS oxygen
A positively charged ion is called a _________. - ANS cation
A functional group that makes a molecule a
weak acid. - ANS carboxyl
BSC 114 Exam 1 Questions And Answers
100% Pass
A ______ is two or more elements combined together in a fixed ratio. - ANS Compound
Electrons in the outermost shell of an atom are called the ______ electrons. - ANS Valence
A type of covalent bond where one atom is more electronegative than the other atom. -
ANS Polar
anything that takes up space and has mass - ANS matter
Water loving substances - ANS hydrophilic
a type of subatomic particle in the nucleus of an atom
that is neutral - ANS neutron
The exchange and sharing of electrons between
atoms is called ___________ reactions. - ANS chemical
In a _____ bond, there is the actual loss and gain of
electrons - ANS ionic
, ©EVERLY 2025 ALL RIGHTS RESERVED
When two forms of a given element have the same
atomic number but different atomic weights, they are said to be _____ of each other -
ANS isotopes
atomic _________ = the number of protons - ANS number
The dissolving agent of a solution - ANS solvent
When a radioactive isotope decays, this leads to a
change in the number of protons in the nucleus, thus transforming the atom to an atom of a
different _________. - ANS element
The substance that is dissolved in a solution - ANS solute
Substances that resist changes in pH - ANS buffers
A substance that is nonpolar and will not readily
dissolve in water - ANS hydrophobic
Basic solutions can also be referred to as______. - ANS alkaline
When molecules of water move fast enough they can
overcome the attractions they have for each other and a liquid can become a gas. This is called
____ - ANS evaporation
cannot be broken down to another substance by chemical means - ANS element
, ©EVERLY 2025 ALL RIGHTS RESERVED
Positively charged particles in the nucleus of an atom. - ANS proton
When two atoms of the same element are in a covalent bond, we can assume that this is a
______ covalent bond. - ANS nonpolar
When two atoms of the same element are in a covalent bond, we can assume that this is a
______ covalent bond. - ANS mass
A weak type of bonding that occurs when a hydrogen atom is covalently attached to one
electronegative atom, such as water, and is also attached to another electronegative atom -
ANS hydrogen
when water freezes, it ___________ in volume - ANS increases
A type of subatomic particle that has a neglible atomic mass - ANS electron
Sharing of a pair of valence electrons between two atoms is a ______ bond - ANS covalent
Isotopes that do not loose particles are said to be ______. - ANS stable
The most electronegative element. - ANS oxygen
A positively charged ion is called a _________. - ANS cation
A functional group that makes a molecule a
weak acid. - ANS carboxyl
