Please help with my chemistry assignment. Directions: A. On the line left of the equation, classify the type of reaction.
B. Balance the equation.
A- addition D- decomposition C- combustion SD- single-displacement DD- double-displacement

1. C6H12O6 + O2 --> CO2 + H2O
2. Mg + O2 --> MgO
3. Na2O + H2O --> NaOH
4. HgO --> Hg + O2
5. C2H5OH + O2 --> CO2 + H2O
6. CaO + H2O --> Ca(OH)2
7. Cu + AgNO3 --> Ag + Cu(NO3)2
8. Fe + Cu(NO3)2 --> Fe(NO3)2 + Cu
9. C2H6 + O2 --> CO2 + H2O
10. KOH + H2SO4 --> K2SO4 + H2O
11. H2O --> H2 + O2
12. FeS + HCI --> FeCI2 + H2S

16- counting by fours

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.

For lesson: cameras, plant presses, newspaper, paper towels, clip boards, pencils, calculators, field guides, metric measuring tapes, paper, transect squares, colored pencils, ph meters, light meters, computers, etc.for extension: baggies for soil samples collecting, distilled water, hand shovels, beakers, boiled rice, microscopes, well microscope slides or regular microscope slides with cover slips