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HESI CHEMISTRY ACTUAL EXAM NEWEST VERSION QUESTION AND CORRECT ANSWER FROM VERIFIED SOURCES RATED A GRADE. $19.99
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HESI CHEMISTRY ACTUAL EXAM NEWEST VERSION QUESTION AND CORRECT ANSWER FROM VERIFIED SOURCES RATED A GRADE.
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HESI CHEMISTRY NEWEST VERSION QUESTION AND CORRECT ANSWER FROM VERIFIED SOURCES RATED A GRADE.

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  • August 28, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • HESI CHEMISTRY

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HESI CHEMISTRY NEWEST VERSION 2024-2025 130 QUESTION
AND CORRECT ANSWER FROM VERIFIED SOURCES RATED A
GRADE.


What makes an atom's physical structure? ✔✔CORRECT ANSWER✔✔A
nucleus and orbits(sometimes known as electron clouds)


What composes the center of the atom? ✔✔CORRECT ANSWER✔✔Protons
and neutrons


What spins in the orbits of an atom? ✔✔CORRECT ANSWER✔✔Electrons


What are the energy levels of the atom called? ✔✔CORRECT
ANSWER✔✔Shells or orbits


What is the term used to define an atom that is electrically charged?
✔✔CORRECT ANSWER✔✔Ionic state.


What is a cation? ✔✔CORRECT ANSWER✔✔An atom with a positive charge


What is anion? ✔✔CORRECT ANSWER✔✔An atom with a negative charge


What is the structure of the periodic table made of? ✔✔CORRECT
ANSWER✔✔A series of rows called periods, and columns called groups.

,What can be predicted by the group an element occupies? ✔✔CORRECT
ANSWER✔✔Charge and the numbers of electrons in its outer shell.


What is the name and properties of group VIII of the periodic table?
✔✔CORRECT ANSWER✔✔Noble gases.
They tend to remain neutral in most situations, because their outer orbits
are complete.


What is the atomic number? ✔✔CORRECT ANSWER✔✔The number of
protons in the nucleus, defines an atom of a particular element.


What is the atomic mass? ✔✔CORRECT ANSWER✔✔The average mass of an
element's isotopes.


What are isotopes? ✔✔CORRECT ANSWER✔✔Different kinds of the same
atom that vary in weight.


What is a compound? ✔✔CORRECT ANSWER✔✔The combination of
different elements.


What do chemical reactions resemble? ✔✔CORRECT ANSWER✔✔A cooking
recipe.

, What are the reactants in a chemical reaction? ✔✔CORRECT
ANSWER✔✔The ingredients of a chemical reaction.


What is the term given to the results of a chemical reaction? ✔✔CORRECT
ANSWER✔✔The products.


Why must a chemical equation be balanced at the end of a reaction?
✔✔CORRECT ANSWER✔✔Because the law of conservation of mass indicates
that mass cannot be created nor destroyed in a chemical reaction.


What are equilibrium reactions? ✔✔CORRECT ANSWER✔✔Chemical
reactions that stop before all the reactants are used to make the products.


What causes equilibrium? ✔✔CORRECT ANSWER✔✔The state in which
reactants are forming products at the same rate that products are forming
reactants.


What are the four basic ways to increase the reaction rate? ✔✔CORRECT
ANSWER✔✔Increase temperature
Increase the surface area of the reactants
Add a catalyst
Increase the concentration of the reactants.


What does increasing temperature cause in a chemical reaction?
✔✔CORRECT ANSWER✔✔The particles have greater kinetic energy,

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