balancing equations

this week we learned to balance chemical equations

we made pretty colors...

...which varied with the pH level of the acid(s)/base(s)

this week, we got to play with solubility labs!


we found out the CO2 in soda is most soluble when soda is cold and/or in high pressure

Like Dissolves Like

we learned how to dissolve things!
dissolving is to break down one substance and assimilate it into another substance



its not easy to dissolve things, only like dissolves like
Like Dissolves Like is the rule for dissolving; only polar liquids can dissolve polar and nonpolar to nonpolar





the one with more substance is the solvent while the other is the solute

MOLES R PWNAGE

oh nooes we gotta chem test on friday =O

we're being tested on lotsa info =( i hope i do well

we got:

covalent bonding, HONC1234
Lewis Dot Structures
the 5 categories of molecular geometry and their respective bond angles
the first 10 alkanes (methane (CH4), ethane (C2H6), propane (C3H8), etc.
saturated vs unsaturated hydrocarbons
Naming binary covalent compounds
isomers
polarity of bonds (electronegativity differences)
polarity of molecules, and symmetry
how water dissolves salts
the three types of bonds
alloys
the seven polyatomic ions to memorize: ammonium (NH4+), hydroxide (OH-), etc. (see the back of the pink PPT packet)
the seven diatomic elements (BrINClHOF)
review questions from past material

i hope we i do well on it :3

today, we did sum kool things

we bent a stream of water without touching it o.O

betcha cant do that xD

we messed with electrons