Chemistry 11

We wrote the stoichiometry test today.  Good Work!   There were some tough questions on there, some of which will be bonus marks.

1) Next we completed lab:  6D.  Answer all questions (not the follow-up) and write a conclusion.   In your conclusion remember to link back to the objectives and list sources of error.

2)  Read page 139-141 in Hebden.  Do exercises #1-4 and #6 pg. 142

Both of these are due tomorrow.  

Biology 12

Today we took notes on the enzymes involved in Chemical Digestion.

Digestion worksheet due tomorrow.

Also due on Wednesday is the lab:  Effect of Temperature on Enzymes.  No introduction required, but you do need to answer all questions and write a conclusion.

On Wednesday we will do the Fetal Pig Dissection.   Here are some good you tube videos demonstrating how:

https://www.youtube.com/watch?v=juW8CM0QDH4

https://www.youtube.com/watch?v=awXzbnRmnu8

https://www.youtube.com/watch?v=5hVasOMtRto

Chemistry 11

Today we took notes and watched a video on the new unit (Unit 5):  Atomic Theory

We also took some time to work on the Unit 4 Review.   Here are some selected answers to qestions:

2)  Change in temperature, change in colour, change of state, precipitate formed, gas given off or smell given off.

4)  Bond forming releases energy.

5b)    SiF₄  +  8NaOH Na₄SiO₄  + 4NaF + 4H₂O

6 and 7a)  Decomposition:   Ba(ClO₃)_2(s)  BaCl_2(s)   +  3O_2(g)

6 and 7c)  Double Replacement (Acid/Base Neutralization) 

H₂C₂O₄  +  Mg(OH)₂ 2H₂O  +  MgC₂O₄ 

8a)  Zn  +  I₂ ZnI₂

 

9b) 9.8 x 10⁴ g Cl₂      

10a) 1.28 x 10³ L O₂ 

10b) 6.25 mole Na

13) 51.1 g of PbCl2 can be obtained

14) 3.36 g of NH4Cl can be obtained

Biology 12

I collected Digestion Module Questions section A and B.   

Next we continued with our work on the Digestive System.   We watched a short video on the enzymes required for digestion as well as the accessory systems in the digestive system.

Next we did lab #36:  The Effect of Temperature on Enzyme Activity
This lab with questions and conclusion is due on Wednesday April 19th.

Chemistry 11

Today we went over the answers to the excess reactants worksheet.  

We did a lab on Limiting and Excess reactants:  Lab 6D on page 90.  You should have turned in up to question #6. 

Chemistry 11

Today we continued work on Limiting and Excess reactants.   Remember that the limiting reactant is the one that limits how much product can get made.  

Due next class:   Excess reactants worksheet

Biology 12

Today we continued with the Digestive system by looking at more details of what happens to food in the movement from your mouth to your stomach.

Due next class:  Digestive system colouring sheet and A and B in the Digestive system module.