Chemistry Midterm Test Questions
2 - ANS - The number of units of unsaturation in CO₂is ___.
\273K - ANS - The freezing point of water is ___.
\acid base neutralization - ANS - H₂SO₄+NaOH->Na₂SO₄+H₂O
\anion - ANS - An ___ is an ion with a negative charge.
\atomic number - ANS - The ______ is the number of protons in the nucleus.
\atomic radii - ANS - On the Periodic Table, the trend of ______ decrease from left
to right, and increase from top to bottom.
\Aufbau Principle - ANS - The ______ states that electrons occupy the available
orbitals in the subshells of the lowest energy.
\Carbon Dioxide is a molecule, not a mixture. This is because itis composed of 3
atoms that are nonmetals. In a mixture, the particles of each atom never combine
or bond, but are simply next to one another, whereas in this type of compound,
they are bonded. - ANS - Consider the following statement: Carbon Dioxide is a
mixture of carbon and oxygen. Tell whether this statement is true or false, and
explain.
\cation - ANS - A ___ is an ion with a positive charge.
\chemical change - ANS - Burning of gasoline
\chemical change - ANS - Limestone gives off carbon dioxide when heated.
\chemical change - ANS - Souring of Milk
\chemical equation - ANS - A(n) _______ is the representation of a chemical
reaction using symbols of the elements and the formulas of compounds.
\chemical property - ANS - Gold does not rust.
\chemical property - ANS - Sulfur burns in air.
\combination - ANS - Mg+N₂-> Mg₃N₂
\combustion - ANS - Na+O₂->Na₂O
\combustion - ANS - The type of equation that reacts a substance with elemental
oxygen is ___.
\compound - ANS - A ___ is formed by a chemical combination of two or more
atoms.
\covalent and ionic - ANS - The two types of bonds are:
\decomposition - ANS - CaCO₃-> CaO + CO₂
\decomposition - ANS - When substances are breaking down to simpler
substances, the chemical reaction that is occuring is called ___.
\double bond - ANS - When two atoms are sharing four electrons between them it
is called:
2 - ANS - The number of units of unsaturation in CO₂is ___.
\273K - ANS - The freezing point of water is ___.
\acid base neutralization - ANS - H₂SO₄+NaOH->Na₂SO₄+H₂O
\anion - ANS - An ___ is an ion with a negative charge.
\atomic number - ANS - The ______ is the number of protons in the nucleus.
\atomic radii - ANS - On the Periodic Table, the trend of ______ decrease from left
to right, and increase from top to bottom.
\Aufbau Principle - ANS - The ______ states that electrons occupy the available
orbitals in the subshells of the lowest energy.
\Carbon Dioxide is a molecule, not a mixture. This is because itis composed of 3
atoms that are nonmetals. In a mixture, the particles of each atom never combine
or bond, but are simply next to one another, whereas in this type of compound,
they are bonded. - ANS - Consider the following statement: Carbon Dioxide is a
mixture of carbon and oxygen. Tell whether this statement is true or false, and
explain.
\cation - ANS - A ___ is an ion with a positive charge.
\chemical change - ANS - Burning of gasoline
\chemical change - ANS - Limestone gives off carbon dioxide when heated.
\chemical change - ANS - Souring of Milk
\chemical equation - ANS - A(n) _______ is the representation of a chemical
reaction using symbols of the elements and the formulas of compounds.
\chemical property - ANS - Gold does not rust.
\chemical property - ANS - Sulfur burns in air.
\combination - ANS - Mg+N₂-> Mg₃N₂
\combustion - ANS - Na+O₂->Na₂O
\combustion - ANS - The type of equation that reacts a substance with elemental
oxygen is ___.
\compound - ANS - A ___ is formed by a chemical combination of two or more
atoms.
\covalent and ionic - ANS - The two types of bonds are:
\decomposition - ANS - CaCO₃-> CaO + CO₂
\decomposition - ANS - When substances are breaking down to simpler
substances, the chemical reaction that is occuring is called ___.
\double bond - ANS - When two atoms are sharing four electrons between them it
is called:
