Electron Configs.
Atoms become more stable when their outer energy level reaches this number of electrons.
What are 8 electrons? (usually)
A chemical bond formed when electrons are transferred between atoms.
What is an ionic bond?
A bond formed when atoms share electrons.
What is a covalent bond?
The substances that start a chemical reaction.
What are reactants?
The type of reaction where two substances combine to form one.
What is a synthesis reaction?
The number of valence electrons found in oxygen.
What is 6?
The two types of elements that typically form ionic bonds.
What are metals and nonmetals?
The attraction that holds atoms together in a covalently bonded molecule.
What is the attraction between shared electrons and the nuclei?
Why chemical equations must be balanced.
What is because mass cannot be created or destroyed?
The classification for AB → A + B.
What is a decomposition reaction?
Draw the electron dot diagram for nitrogen.
(N with 5 dots surrounding)
The formula of the compound formed from Mg²⁺ and Cl⁻.
What is MgCl₂?
Whether an H2O molecule is polar or nonpolar.
What is polar?
The product in the equation 2H₂ + O₂ → 2H₂O.
What is water?
The type of reaction shown by
Zn + HCl → ZnCl₂ + H₂
What is a single replacement reaction?
The reason noble gases rarely form compounds?
What is they already have stable electron configurations?
What happens to electrons when NaCl forms.
What is sodium transfers one electron to chlorine?
The reason a water molecule has a positive and negative end.
What is its polar bonds and bent shape make it polar?
The balanced form of Fe + O₂ → Fe₂O₃.
What is 4Fe + 3O₂ → 2Fe₂O₃?
The type of reaction shown by
AgNO₃ + NaCl → AgCl + NaNO₃
What is a double replacement reaction?
Aluminum’s likely behavior with its three valence electrons.
What is lose 3 electrons?
The correct formula of the compound formed from aluminum and oxygen.
What is Al₂O₃?
The comparison between attractions in polar vs. nonpolar molecules.
Balance the following combustion reaction:
C₃H₈ + O₂ → CO₂ + H₂O
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O?
These are ALWAYS the products of a combustion reaction.
What are H2O and CO2?