Redox Reactions

-driving force is electrons transferred
-losing electrons=oxidation(reducing agent)
-gaining electrons=reduced(oxidizing agent)

OIL RIG
(oxidation is lost, reduction is gain)

ELEMENTS REPLACE LIKE ELEMENTS, so non-metals to other non-metals and metals to metals

Synthesis- 2 or more reactants combine making 1 product

Decomposition- 1 reactant making multiple products

Combustion- oxygen as reactant, producing carbon dioxide and water

Redox for DUMMIES

Single Replacement

Unit Quiz

All together I thought this was a very easy quiz. Looking back I know realize I made at least one mistake. On question 6 you had to balance the equation then add the coefficients. You needed to put in two 3's to balance the equation, so the answer I choose was 6. However, I forgot to add the coefficients of one that were in front of the other products and reactants. Oh well, better luck next time.

Getting over it

Balancing chemical equations

How to improve

Practice Balancing

Acid/Base Reactions

•driving force is production of water 

•produces a salt and water

Strong acids

•produce H+

•HCl, HBr, H and when oxygen a outnumber the hydrogen a by two or more

Strong bases

•contain OH- anion

•all group 1 and 2 metals

Chemical Symbols

Anything above and arrow is a catalyst

All reactions must have diving force such as; formation of solid,water, or gas or transfer of electrons

Unit test

I feel that this test was a good judge of who worked hard and who didn't...those that complain that this test was to hard should try harder for the next test. This test may very well bring my grade down but I cannot blame the test for my lack of competence, only myself. I have been sick and did not put forth my best effort, however there will be other reset and I cannot dwell on the past or make excuses for myself(although I kinda just did with the sick thing)  Better luck next time!

Chemical Reactions

Clues that chemical reaction occurred 

-change in color

-solid forms

-bubbles form(aqueous solutions)

-heat/flame produced 

Molecular Formulas

1)calculate empirical formula mass

2)divide EF mass into gram formula mass and get whole number

3)distribute whole number to the empirical formula 

Quiz

I was very unprepared for this quiz. I spent hours studying the night before and still had no concept of the questions. I definetly need to look over my notes again before this next test. Did any of you have these problems? And do you have any advice? I want to understand this unit, I enjoy the simplicity of calculations but it is hard to find what data to use in a word problem.

Chemical Composition

Mole= 6.02x10^23

Moles to Grams

Grams to Moles

Average Atomic Mass

Molecular Weight

Molar Mass

Unit=grams/mole

Gram molecular mass

-covalent compound(no metals)

Gram formula mass

-ionic compounds(metals)

Calculate

The Mole and Molar Mass

Unit Pre-Test

We took this units pretest today...and I am quite worried. I did not know any of the subject material and I guessed in the entire test. However, all of the questions I didn't know were very similar. Hopefully, with some slight instruction I will understand. My grade in chemistry has slowly been rising and I do not want this unit to be what brings me down. I will try my best, and I can only hope it will be good enough!