Lewis Structures and Shapes
Periodic
Types of Chemical Reactions
Balancing Equations
100

What is the number of atoms bonded to the central atom of this structure?         O         C      O  

2 atoms

100

What is the Periodic symbol for Iron?

Fe

100

What are the 5 chemical reactions?          

Synthesis, Decomposition, Single n Double Replacement, and Combustion

100

_ Ca + _ S2 -> _ CaS    

2 , 1 , 2

200

How many atoms must be bonded to a trigonal planar shape Lewis dot structure?                    

3 atoms

200

What group number is Bromine

Group 17

200

What kind of Chemical reaction is this? H+O=HO              

Synthesis

200

_H20 -> _H2 + _02        

2, 2, 1

300

What are the 5 shapes a Lewis dot structure could be?

linear, Trigonal Planar, Tetrahedral, Bent, and Trigonal Pyramidal

300

What is the biggest group of elements?

Transition Metals

300

What kind of chemical reaction is this? AB + CD -> AD + CB

Double Replacement

300

_MgO -> _Mg + _O2      

2, 2, 1

400

What is the shape of this Lewis dot structure,?      O         C          O          

Linear

400

What element is both a solid and a liquid depending on the temperature?

Mercury

400

What kind of bond always comes out of combustion?      

CO2

400

_Na + _N2 -> _Na3N        

6, 1, 2

500

When one atom in a Lewis dot structure can bond to the central atom more than once, what kind of bond does it form?

Double Bond

500

What is the most reactive element?

Fluorine

500

What kind of chemical reaction is this? AB -> A+B              

Decomposition

500

_P + _O2 -> _P2O5            

4, 5, 2