Showing posts with label Andrew S.. Show all posts
Showing posts with label Andrew S.. Show all posts

Friday, February 21, 2014

2/21/14

Class Blog 2/21/14

We had a substitute today. We spent the entire period working on the Thermochemistry Packet. I would assume that the packet is available on Moodle.

Homework

Thermochemistry Packet (if it wasn't finished in class) due Monday.

The last two WebAssigns were reopened on Moodle as well. Do them before 11:59 on Sunday.



The next blogger is Francine Y.

Monday, November 25, 2013

Monday, November 25, 2013

November 25, 2013

We turned in the Molar Volume Lab and checked in the homework first, and then went over said homework (Gas Stoichiometry 1). Then we took a partner quiz, which we initially thought was for a grade, but turned out to be mainly for practice at the end. The answers for it should be on Moodle.

Homework:
Study for test
Correct partner quiz
Also, charge your calculators

The next blogger is Elaine S.

Wednesday, November 6, 2013

11/6/2013

First, we had to turn in our Concentration and Molarity PhET Simulation Packets.
We received three sheets, each titled Solution Stoich, which we taped into our journals. These sheets should be available in Moodle under Unit 4 handouts.
We then began to take notes on solution stoichiometry, which should be available on Moodle under Unit 4 notes.

The homework was the three sheets we received earlier.

Next scribe is Danny S.

Thursday, October 10, 2013

10/10/13 Blog Post

Immediately we checked in the homework, which included the pages “Classifying, Predicting, and Balancing, Oh My!” and “Types of Reactions”. The key containing them both is on Moodle. Also for homework, we had to write down and balance this equation:
copper (II) sulfate reacts with sodium phosphate to produce sodium sulfate and copper (II) phosphate.
The correctly balanced equation is:
3CuSO4+2Na3PO4 ----> 3Na2SO4+Cu3(PO4)2


After looking over the homework, the subject went over to combustion reactions.


  • Any reaction that reacts with oxygen and produces heat and flame is a combustion reaction.
  • They will always produce carbon dioxide (CO2) and water (H2O).


We received packets from the front of the room, which contains today’s lab. There is no write up for this lab; you only need to finish the packet. This packet can be printed off of Moodle.


This is the data that I received for this lab:
(I was not able to obtain all the data. If you were absent, you can ignore the other 3 reactions.)


           Reactant(s)        Evidence of Reaction             Products
Reaction 1
Magnesium: small metal ovals.
Mg flashes white/yellow when heated with burner.
Mg curled up, turned white and powdery in burned areas.
Reaction 2
Magnesium: small metal ovals.
Hydrochloric acid: a clear liquid.
When combined in a test tube, they immediately started to fizz up and produce heat. A popping sound was made when a match was dipped in.
A hot and bubbly liquid.
Reaction 3
Ammonium carbonate: a white, clumped up powder.

When placed in a test tube and held over a match, it became a dusty brown liquid.
A dusty brown liquid.
Reaction 4
Calcium carbonate: little white stones, the size of jelly beans.
Hydrochloric acid: a clear liquid.
The CaCO3 became clear when submerged in the acid.
A clear stone submerged in a liquid.
Reaction 6
Sodium phosphate: a clear liquid.
Copper (II) chloride: a blue liquid.
When mixed, the liquid stays blue, forms a white precipitate.
A teal liquid with a clump of white goo inside.
The homework is the worksheets inside the packet. Also, there is a quiz tomorrow. The homework and the Predicting Products Practice sheets (which can be found on Moodle) should help in your studying.

The next poster shall be Bobby R.