Revision Blog

Todays Lesson - Only 1 Periods left until the Internal!!!!

Part 1
Recap Combination & Decombination (5mins)
Test you knowledge (Internal Practice) (15mins)

Part 2
Recap Displacement (5mins)
Test you knowledge (Excellence Internal Practice - will be marked ) (20 mins)

Friday 
Part 3
Exchange Reaction Recap 
Test Your Knowledge

Solubility Table

1.    All nitrates are soluble. 2.    All sodium and potassium compounds are soluble. 3.    All chlorides are soluble except silver chloride and lead chloride. 4.    All sulfates are soluble except barium sulfate, lead sulfate, calcium sulfate. 5.    All carbonates are insoluble except sodium and potassium carbonates. 6.    All hydroxides are insoluble except sodium and potassium hydroxides.

Reactivity Series of Metals

1.    Potassium

2.    Sodium

3.    Lithium

4.    Calcium

5.    Magnesium

6.    Aluminium

7.    Zinc

8.    Iron

9.    Tin

10. Lead

11. Copper

12. Silver

13. Gold

14. Platinum

How to write an answer. (5 steps to Merit & Excellence)

RULE :A displacement reaction in where a more reactive metal displaces a less reactive metal from a solution.

OBSERVATION: When the Magnesium metal was placed in the Copper Sulfate solution, we saw Copper crystals form as the Magnesium was corroded.

WHY/JUSTIFY 
This was because Magnesium is a more reactive metal than Copper and it was reacting with the Sulfate in the solution.

As the symbol equation shows as well as lead, a solution of zinc nitrate was being formed also.

WORD EQUATION

SYMBOL EQUATION
Zn_(s) + Pb(NO₃)_(aq) → Pb_(s) + Zn(NO₃)_2(aq)  

Exchange Reaction

1. What is an exchange rxn (Rule)

L2 Exchange Reactions. Exchange reactions are those in which cations and anions that were partners in the reactants are interchanged in the products. In exchange reactions, the products must remain electrically neutrall

L1 An exchange reaction occurs between compounds that, when written as a molecular equation, appear to involve the exchange of parts between the two reactants. An exchange reaction will occur when ions in solution form insoluble products, weak electrolytes, or nonelectrolytes.

1. Find mea picture of AB+CD=

1. What are the solubility rules

When excessive amounts of acids are produced in the stomach the natural mucous barrier that protects the lining of the stomach can damage the esophagus in people with acid reflux. Antacids contain alkaline ions that chemically neutralizestomach gastric acid, reducing damage and relieving pain.^[1]

DECOMPOSITION REACTION

Decomposition Reaction:

Copper Carbonate (CuCO3) decomposes by heat to form either one of two oxides, namely Copper (I) Oxide (Cu2O) and Copper(II) Oxide (CuO). ... Column II carbonates are decomposed by heat to form corresponding oxides and carbon dioxide. 

The reaction is call a Thermal Decomposition. These reactions always need heat.

Decomposition reactions are exactly as you would expect: a breakdown or separation of a chemical compound into elements or more simple compounds. During the process, substance AB decomposes or breaks apart to produce substance A and B.

AB → A + B










Decomposition of Copper Carbonate - Video

Equipment without collectig tube



With Collecting Tube


Observations

XXXXXXX

Word Equation

Metal Carbonate + Heat =  Metal Oxide + CO2

Copper Carbonate + Heat = Copper Oxide + Carbon Dioxide

Chemical Equation

CUCO3 (s) = CUO (s) + CO2 (g)

Balanced Full Equation

As above

Further Research



Wiki of Chemistry

This type of reaction is called thermal decomposition.
Thermal decomposition is an example of an endothermic reaction, a reaction that gains energy from the surroundings. 

Excellence links
https://en.wikipedia.org/wiki/Chemical_decomposition
https://www.bbc.com/bitesize/guides/zqd2mp3/revision/5

Combination 'Reaction' - A joining or merging reaction

Blogging a Combination Reaction

Mr Anderson : Interesting FACT : Music : Used to play Lead Guitar in a GreenDay Tribute Band

Blogging the Timeline

Combination Reaction – researching (10mins)

Find a suitable youtube video (5mins)

Teacher models experiment (1-2 mins)

Students complete & Record the experiment (10mins

Merit/Excellence Chasers Mock Internal Exam Question (15mins) - 

Quote of the Day:

Perfection is not attainable, but if we chase perfection we can catch excellence. 

Combination Reaction:

A combination reaction is a reaction in which two reactants combine to form one product.

“Oxygen and the halogens are very reactive elements and are likely to undergo combination reactions with other elements”. 

Examples:

Calcium + Sulfur = Calcium Sulfide

Chemistry Related Video 'Purple Haze' 

Reaction between iodine and zinc

Model Experiment

Combination Reaction between magnesium and oxygen.

Word Equation

Balanced Equation

Step 2 Digestion 
Food Journey Through the Body.

Stomach
The oesophagus leads to the stomach.
The stomach can hold 2- 4 Litres of fluid - it so big because it evolved to protect us from scavengers (Wolves ect)
It holds acid, which digests the food - called gastric juice
The PH of the acid is 1-2




Small Intestine

Lies between the stomach and large intestine
Lipids (fat) have been broken down by emzymes in the stomach into fatty acids and glycerol.
Peristalsis : movement of food throught the intestine via circular and longitudidal muscles.



Keyhold surgery. Camera inside your small intestine.
Gastic Ulser - common in teaching caused by stress




Peptic Ulcer..

liver 
The liver is te 2nd largest organ in the body.


.

Teeth & Digestion

Teeth & Digestion :  MODEL experiment to demonstrate decay of enamel in teeth.

WALT to construct an experiment that can compare the effects of different solutions (OJ/COKE/HCL) on tooth enamel.

SC1: We can collect observations of the effect of the solutions on teeth enamel and add them to our blog.

09:00  MODEL experiment to demonstrate decay of enamel in teeth.

09:10Q’s – Add in your blog

09.15 Find the culprits from the ingredients lists – PRIZE

09.18 Write up in your blog in italics why having teeth is important in digestion and what causes you to have rotting teeth.

Energiser find me a before and after of teeth

Research : saliva, and digestion problems without teeth.

09:20 Workbook P199 (Teeth Types)  WS

09:25 p201 Class reading

09:30 Add details from this chapter to your blogg

09:35 : Wrap up

Digesting Food


Masticating

Bolus

Ossophagus

Stomach