Month: November 2017

Science 10 Review Booklet Answers

Acids and Bases

  1. (a) H+; less than; lower; blue; red; remains colourless; conduct; sour

(b) OH– ; greater than; higher; red; blue; remains colourless in a weak base but turns pink at a pH of 10 or higher; conduct; bitter

  1. Answers are in boldface.
Name of Substance Chemical Formula of Aqueous Solution Name of Acid or Base
hydrogen sulphide H2S hydrosulphuric acid
hydrogen carbonate H2CO3 carbonic acid
hydrogen phosphate H3PO4 phosphoric acid
magnesium hydroxide Mg(OH)2 magnesium hydroxide solution
ammonium hydroxide NH4OH ammonium hydroxide solution
hydrogen chlorate HClO3 chloric acid
hydrogen acetate CH3COOH acetic acid or ethanoic acid
hydrogen sulphite H2SO3 sulphurous acid

Salts and Metal and Non-Metal Oxides

  1. (a) HBr + NaOH → NaBr + H2O; sodium bromide

(b) H2SO4 + Mg(OH)2 → MgSO4 + H2O; magnesium sulphate

(c) 2H3PO4 + 3Sr(OH)2 → Sr3(PO4)2 + 6H2O; strontium phosphate

(d) 3HNO3 + Al(OH)3 → Al(NO3)3 + 3H2O; aluminum nitrate

(e) 2CH3COOH + Ca(OH)2 → Ca(CH3COO)2 + 2H2O; calcium acetate

  1. (a) 2HF + Mg → MgF2 + H2; magnesium fluoride

(b) 6HClO3 + 2Al → 2Al(ClO3)3 + 3H2; aluminum chlorate

(c) 2H3PO3 + 6K → 2K3PO3 + 3H2; potassium phosphite

(d) 2HNO3 + Ca → Ca(NO3)2 + H2; calcium nitrate

(e) 2CH3COOH + Zn → Zn(CH3COO)2 + H2; zinc acetate

  1. (a) basic

(b) acidic

(c) acidic

(d) basic

Chapter 5 Quiz

1. A

2. D

3. D

4. B

5. D

6. A

7. B

8. B

9. D

  1. C
  2. D
  3. B
  4. F
  5. C
  6. H
  7. E
  8. Answers are in boldface.
Compound Name Acid, Base, or Neither?
(a) H2SO4 sulphuric acid or aqueous hydrogen sulphate acid
(b) HCl hydrochloric acid or aqueous hydrogen chloride acid
(c) Ca(OH)2 calcium hydroxide base

 

  1. Answers are in boldface.
Indicator Colour at pH 4 Colour at pH 7 Colour at pH 10
Blue litmus paper red blue blue
Red litmus paper red red blue

Notice for #19 it doesn’t matter what order you put the water and the salt (and it doesn’t matter if the Acid is written first or second):

  1. (a) HBr + KOH  →  KBr  +  H2O

(b) 3H2SO4 + 2Al(OH)3  →  Al2(SO4)3  +  6H2O

(c)        Neutralization

For block 1.3 students, please remember terminology around “What anion is in the acid sulfuric acid” (they really just want to know which negative ion is attached to the hydrogen ions) so the answer is sulfate.

 

Upcoming

Science 8, workbook 3.1 due

Block 1.2 due Thurs Nov 23

Block 2.1 and 2.2 due Fri Nov 24

_______________________________________________________

Science 10 Chapter 5 Test Mon Dec 4th

Please finish the Chap 5 Review (textbook; not the Prepare Your Own Summary, but all the other 23 questions 🙂

by THURS Nov 23rd

_______________________________________________________

Biology 12

Genetic Disorders “Research” Paper due

Block 1.1 due Mon Dec 4th

Block 2.4 due Thurs Nov 30th

BE CURIOUS! Thanks to my 8’s whose curiosity knows no bounds!

I’m supposed to be in a lunch meeting right now (teachers, we eat and work!).

But i have some students who asked really good questions today! My number one rule, be curious!

A sample of today’s questions, around Circulation, the heart, and capillaries:

  1. Does space affect the heart? An open ended question would then become, how does space affect the heart (I hope Olvin becomes a scientist/astronaut)?
  2. Does diffusion happen in space? Knowing that zero Kelvin is absolute zero, work backwards and think about what has to happen to allow for diffusion to happen. What is the temperature of outer space, on average? I think we were considering an atmosphere but no gravity. What about in outer space outside of your space capsule?
  3. Time to go to the meeting…

Keep it up grade 8’s, life is so extraordinary!

Biology 12 Research Paper Template and Chap 4 Membrane Disorders

Biology 12 – We will be looking into some of the most prevalent disorders of the Cell Membrane including but not limited to, Cystic Fibrosis, Alzheimer’s, and Hyaline Membrane Disease.

Hyaline Membrane Disease - a disease of preterm infants in which the lungs 
are not fully mature at the time of birth, resulting in respiratory 
distress. Pneumocytes are not fully differentiated and so the lungs are 
not capable of the normal oxygen/carbon dioxide exchange that is required 
after birth.

Alzheimer's - oxidative stress (in the brain) caused by Alzheimer's 
results in alterations in the phosphlipids that comprise the cell membrane 
and disrupts the function of affected brain cells.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3565322/

Cystic fibrosis - a defect in a calcium-ion channel results (for unclear 
reasons) in excess production of fluid in the lungs.

Template for Research Papers

Name: ________________________________ Date: ________________ Block: ________

Use the following guiding principles to formulate a well-researched and articulate paper:

  • Always provide your citations at the end. Most work is researched from reputable online sources, you must use 2 outside of Wikipedia. LiveStrong and government websites might be more reliable than run of the mill websites found by simply entering key terms.
  • Open with an introduction both stating your thesis and a summaryof what you will be writing about.
  • Include within the body, a brief history of the disorder; the research and development currently surrounding this disorder; what the disorder is in a nutshell; the prognosis and likelihood of a remedy; symptoms; etc not necessarily in this order and preferably in their own paragraphs as common sense dictates
  • A conclusion summarizing your paper and including a personal connection to this topic and/or the reason you chose this over other diseases.

You need not include all the information on the web in this paper. Two well written pages (usually around 500 words) plus 2 diagrams or photos or images (cited please) from the web will suffice. The images should be appended or pasted after the written portion of your paper.

Please us your class time wisely.

Printer issues; please anticipate as research papers are due at the bell with no leniency given around leaving to print in the learning commons. After the bell late work will be assessed as per Biology 12 Course Outline guidelines.

Plagiarism: research gathered is to be in your own words. Academic honesty policies abound on the JO Website, VSB Policy guidelines, and on Mr Sommerfeld’s bulletin board near the front entrance 😉

Due date: _____________________