HESI A2 CHEMISTRY HESI A2
CHEMISTRY LATEST UPDATE 2021
WITH CORRECT ANSWERS
GRADED A+
What makes an atom's physical structure? - CORRECT ANSWERSA nucleus and
orbits(sometimes known as electron clouds)
What composes the center of the atom? - CORRECT ANSWERSProtons and neutrons
What spins in the orbits of an atom? - CORRECT ANSWERSElectrons
, What are the energy levels of the atom called? - CORRECT ANSWERSShells or orbits
What is the term used to define an atom that is electrically charged? - CORRECT
ANSWERSIonic state.
What is a cation? - CORRECT ANSWERSAn atom with a positive charge
What is anion? - CORRECT ANSWERSAn atom with a negative charge
What is the structure of the periodic table? - CORRECT ANSWERSA series of rows
called periods, and columns called groups.
What can be predicted by the group an element occupies? - CORRECT
ANSWERSCharge and the numbers of electrons in its outer shell.
What is the name and properties of group VIII of the periodic table? - CORRECT
ANSWERSNoble gases.
They tend to remain neutral in most situations, because their outer orbits are complete.
What is the atomic number? - CORRECT ANSWERSThe number of protons in the
nucleus, defines an atom of a particular element.
What is the atomic mass? - CORRECT ANSWERSThe average mass of an element's
isotopes.
What are isotopes? - CORRECT ANSWERSDifferent kinds of the same atom that vary
in weight.
What is a compound? - CORRECT ANSWERSThe combination of different elements.
What do chemical reactions resemble? - CORRECT ANSWERSA cooking recipe.
What are the reactants in a chemical reaction? - CORRECT ANSWERSThe ingredients
of a chemical reaction.
What is the term given to the results of a chemical reaction? - CORRECT
ANSWERSThe products.
Why must a chemical equation be balanced at the end of a reaction? - CORRECT
ANSWERSBecause the law of conservation of mass indicates that mass cannot be
created nor destroyed in a chemical reaction.
What are equilibrium reactions? - CORRECT ANSWERSChemical reactions that stop
before all the reactants are used to make the products.
CHEMISTRY LATEST UPDATE 2021
WITH CORRECT ANSWERS
GRADED A+
What makes an atom's physical structure? - CORRECT ANSWERSA nucleus and
orbits(sometimes known as electron clouds)
What composes the center of the atom? - CORRECT ANSWERSProtons and neutrons
What spins in the orbits of an atom? - CORRECT ANSWERSElectrons
, What are the energy levels of the atom called? - CORRECT ANSWERSShells or orbits
What is the term used to define an atom that is electrically charged? - CORRECT
ANSWERSIonic state.
What is a cation? - CORRECT ANSWERSAn atom with a positive charge
What is anion? - CORRECT ANSWERSAn atom with a negative charge
What is the structure of the periodic table? - CORRECT ANSWERSA series of rows
called periods, and columns called groups.
What can be predicted by the group an element occupies? - CORRECT
ANSWERSCharge and the numbers of electrons in its outer shell.
What is the name and properties of group VIII of the periodic table? - CORRECT
ANSWERSNoble gases.
They tend to remain neutral in most situations, because their outer orbits are complete.
What is the atomic number? - CORRECT ANSWERSThe number of protons in the
nucleus, defines an atom of a particular element.
What is the atomic mass? - CORRECT ANSWERSThe average mass of an element's
isotopes.
What are isotopes? - CORRECT ANSWERSDifferent kinds of the same atom that vary
in weight.
What is a compound? - CORRECT ANSWERSThe combination of different elements.
What do chemical reactions resemble? - CORRECT ANSWERSA cooking recipe.
What are the reactants in a chemical reaction? - CORRECT ANSWERSThe ingredients
of a chemical reaction.
What is the term given to the results of a chemical reaction? - CORRECT
ANSWERSThe products.
Why must a chemical equation be balanced at the end of a reaction? - CORRECT
ANSWERSBecause the law of conservation of mass indicates that mass cannot be
created nor destroyed in a chemical reaction.
What are equilibrium reactions? - CORRECT ANSWERSChemical reactions that stop
before all the reactants are used to make the products.
