NAME: ______PERIOD ______DATE: ___/___/___ Bonds Unit Test Skills Check List
NAME: ______PERIOD ______DATE: ___/___/___ Bonds unit test skills check list
ITEM / Definition/Notes / Confidence (1 – 5) / Example / Mr W Calendar Day or Lesson Number (reference)Ionic Bonds / Left/right of the stairs or polyatomic ions
Covalent Bonds / Right of the stairs and EN difference between 0 and 1.0
Polar Covalent Bonds / Right of the stairs and EN difference between 1.1 and 1.7
Electronegativity / A measure of how much an atom wants to gain electrons-- read from Periodic Table.
Naming ionic bond compounds / First atom, first name, second atom drop the ending and add an –ide
Naming covalent compounds / You don’t know how to do that / xxxxxxxxx / xxxxxxxxxxxxxx / xxxxxxxxxxxxxxxxxxxxxxxx
Polyatomic ions / carbonate(CO3)-2; sulfate(SO4)-2 ; nitrate(NO3)-1
Counting atoms / Count each atom once and multiply by the subscripts and numbers out in front / Al2(CO3)3 means Al=2;C=3;O=9
Ionic vs Covalent Structures / Ionics bonds form complex 3 dimensional crystals,covalents form simple molecules
Exothermic / Gives off heat as a product in the reaction
Endothermic / Requires heat input to reactants in order to make the reaction go
Combustion Reaction / Some compound burns in oxygen gas to produce water vapor and carbon dioxide gas
Decomposition / A single compound breaks into two or more products
Synthesis Reaction / Two compounds react to form a single product
Reactants / Atoms and/or compounds on the left side of the equation that REACT
Products / Atoms and/or compounds on the right side of the equation that are PRODUCED in the reaction
Balancing equations / The number of each type of atom on the left side of the equation MUST match the number of each type of atom on the right side of the equation. We can only use subscripts when we write down the initial compounds (like O2). Once those are written down, we can only balance atoms or compounds by adding a number out in front (like 5O2)