NEW
Font size
WorksheetsReview for Semester 2 Final
Total questions: 40
Worksheet time: 20mins
Elements in the same COLUMN on the periodic table have the same...
chemical behavior
number of electrons
energy levels
atomic mass
Elements in the same ROW on the periodic table have the same...
chemical behavior
number of electrons
energy levels
atomic mass
Positive or negative number that indicates how many electrons an atom has gained, lost, or shared to become stable
oxidation number
atomic mass
atomic number
valence electrons
atoms that have gained a charge because they have either lost or gained and electron
ion
isotope
quark
reactant
Atoms that have LOST two electrons will have a _____ charge.
+2
+1
-2
-1
Atoms that have GAINED one electron will have a _____ charge.
-1
-2
+1
+2
Atoms that have GAINED two electrons will have a _____ charge.
-1
-2
+1
+2
Atoms that have LOST one electron will have a _____ charge.
+2
+1
-2
-1
Compounds that are formed by the TRANSFER of electrons between atoms
ionic compound
covalent compound
endothermic
exothermic
Compounds that are formed by the SHARING of electrons between atoms
ionic compound
covalent compound
endothermic
exothermic
Ionic compounds always involve a ____ and a ______
metal, nonmetal
nonmetal, nonmetal
metal, metal
nonmetal, metal
Covalent compounds always involve a ____ and a _____
metal, nonmetal
nonmetal, nonmetal
metal, metal
nonmetal, metal
Which of the compounds IS NOT a covalent compound?
H2O
NH3
SO2
MgBr2
Which of the compounds IS NOT an ionic compound?
NaCl
MgBr2
SO2
Al2O3
Matter cannot be created or destroyed.
Law of Conservation of Matter
Law of Conservation of Speed
Law of Conservation of Momentum
Law of Conservation of energy
The chemical(s) you start with before the reaction.
Reactants
Products
Coefficients
Subscript
The new chemical(s) formed by the reaction.
Reactants
Products
Coefficients
Subscript
A reaction in which the energy supplied for the reaction is greater than the energy released from the reaction
endothermic reaction
exothermic reaction
ionic reaction
covalent reaction
A reaction in which the energy released from the reaction is greater than the energy supplied to start the reaction.
endothermic reaction
exothermic reaction
ionic reaction
covalent reaction
What is the overall charge of the sodium atom?
+1
-1
+11
-10
What is the overall charge of the Fluorine atom?
+1
-1
+9
-10
What is the overall charge of the Magnesium atom?
+2
-2
+12
-10
Is the reaction listed an endothermic or exothermic reaction?
endothermic
exothermic
Is the reaction listed an endothermic or exothermic reaction?
endothermic
exothermic
Is the reaction listed an endothermic or exothermic reaction?
endothermic
exothermic
Is the reaction listed an endothermic or exothermic reaction?
endothermic
exothermic
What is the missing mass in the equation?
68
24
64
44
What is the missing mass in the equation?
50
20
35
15
What is the missing mass in the equation?
5
8
20
2
What is the missing mass in the equation?
10
20
15
5
What is the missing mass in the equation?
90
45
30
105
What is the missing mass in the equation?
32
28
10
6
What is the overall charge of the Boron atom shown?
+5
-3
0
+11
What is the overall charge of the Sodium atom shown?
+1
0
-1
+11
What is the overall charge of the Beryllium atom shown?
+1
0
-1
+4
What is the overall charge of the Nitrogen atom shown?
+7
0
-3
-10
What type of reaction is a match burning?
endothermic
exothermic
What type of reaction is baking a cake?
endothermic
exothermic
What type of reaction is photosynthesis?
endothermic
exothermic
What type of reaction is burning sugar?
endothermic
exothermic
