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https://www.youtube.com/watch?v=0Bt6RPP2ANI

• Introduce  one chemical reaction

• Identify reactants and products in that reaction
• Identify reactants and products as either elements or compounds
• Present the evidence in each case that a chemical reaction has occurred
• Give chemical word equations for the reaction.
• Model the reaction showing the rearrangement of atoms.
• Discuss the advantages of the reaction.
• Discuss the disadvantages.

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8 Al + 3 Fe3O4 –> 9 Fe + 4 Al2O3 + Heat

8 Aluminium + 3 Iron and 4 oxygen ---> 9 Iron + 4 * 2 Alumiium and 3 Oxygen

Thermite is a chemical reaction when Aluminium and copper sulphate react to create heat (3000 Degrees) and
The products are aluminium and iorn oxide in the reaction.

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1. white to pale yellow crystalline solid which is soluble in most popular organic solvents, but not in water, which is insoluble in it.

2. Usage of Luminol is in crime scenes to detect trace amounts of blood.

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we copy righted this reaction

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Photosynthesis is the process by which plants convert energy from the sun into chemical energy in the result of sugar.

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Acid and Sugar

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When doing this experiment, use proper safety precautions. Always remember to wear with concentrated sulfuric acid, you should wear gloves, eye protection, and a lab coat at all times, to prevent any injuries.

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sulfer acid and sugar reaction

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Job
1. Also called the oscillating clock reaction, the Briggsrauscher reaction is all about the element iodine.
2. The oscillation, from the two colorless solutions to yellow to blue to clear and back to yellow again, depends on the two forms of iodine.
3. The two forms of iodine are molecules with two atoms types of iodine bound together, and alone, negatively charged iodine atoms
4. Whilst the experiment is on-going multiple reactions take place; change in colour,

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1. A cyclic peroxide is produced by the reaction, which quickly decomposes

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Golden rain is a mix of two colorless solutions: potassium iodide solution and lead nitrate solution at room temperature to form lead iodide and potassium nitrate

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why is it a chemical reaction?
the

advantages:

disadvanages:

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The reactant is the aluminium and the iron oxide

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luminol formula - C₈H₇N₃O₂

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Carbon + Hydrogen + Nitrogen + Oxygen

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Reactants and products as either elements or compounds

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Reactants and products as either elements or compounds

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Potassium iodide is a compound that is made up of the elements potassium and ionic
Lead nitrate is a compound that is made up of the elements lead and a poly atomic ion called nitrate.

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5.  hydrogen peroxide and  potassium iodide
6.
7. advantages
the reaction looks cool and its intresting

8. disadvantages
waste of materials

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Evidence that a chemical reaction has occured

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Evidence that a chemical reaction has occured

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The solution changes from a clear solution to a yellow precipitate of lead (II) iodide
The solution heats up and precipitates in the form of lead iodide crystals

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Potassium Iodide + Lead Nitrate ---> Potassium Nitrate +  Lead Iodide
Chemical Equation:
2KI + Pb(NO₃)₂ → 2KNO₃ + PbI₂

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The advantages of Thermite is that it is used in welding and can seep into cracks of metal. It is highly reliable as it heats up to 3000 degrees celcius.
The disadvantages are ------

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1. Also know as Mercury(II) thiocyanate. It is a white powder and produces a large winding "snake" when ignited.

2. The chemicals used in this experiment is done by just igniting mercury(II) thiocyanate. Formula: 2Hg(SCN)₂ → 2HgS + CS₂ + C₃N4.

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Rectants:
1. potassium iodide
2. sulphuric acid
3. Malonic acid
4. manganese sulfate monohydrate
5. Vitex starch
5. Hydrogen peroxide

Products
1. Water
2. oxygen
3.

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- Blood is not the only substance that is triggered by Luminol.
-> copper, bleach, urine & animal blood
- prevents other tests from being preformed on the item it has been sprayed on, but DNA can still be extracted.
-  Fluorecent must be observed in a dark room, and observation window is really short.
- it has been identified as a possible carcinogen. (a substance capable of causing cancer.)

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3.you can see that its a physical change because its changing in size

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Reactants used in Sulfuric acid and sugar reaction

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Reactants used in Sulfuric acid and sugar reaction

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It's the dehydration of sugar and sufuric acid. The sulfuric acid removes water from the sugar in a highly exothermic reaction, releasing heat, steam, and sulfur oxide fumes. Chemical Equation: C₁₂H₂₂O₁₁ (sugar) + H₂SO₄ (sulfuric acid) → 12 C (carbon) + 11 H₂O (water) + mixture water and acid

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The plants use energy from the light they get from the sun to react with carbon dioxide and water to make glucose and oxygen.

Reactants: Light energy, carbon dioxide and water.

Products: Glucose and Oxygen

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HgO + 2 HSCN → Hg(SCN)₂ + H₂O
or
Hg(NO₃)₂ + 2 KSCN → Hg(SCN)₂ + 2KNO₃

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It is made from hydrazine and hydrogen peroxide and exhibits chemiluminescence

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- It reacts with blood without being mixed with any other oxidizing agent. Luminol wears off in 30 seconds, preventing tested substances from glowing for long periods of time.
- Luminol can be photographed to provide permanent evidence of a crime.
- It detects trace amounts of blood that are many years old, even if the bloody surface/item was cleaned

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Reactants:
Carbon dioxide = compound
water= compound
Products:
Oxygen=element
glucose=compound

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the disadvantages are that mercury thiocyanate

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Water and carbon dioxide combine and we get glucose and oxygen. This is a chemical reaction because new chemical species are formed.

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Luminol --> Carbon + Hydrogen + Nitrogen + Oxygen
Chemical equation
C₈H₇N₃O₂ -->

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Chemical word equation:
light energy + carbon dioxide + water = sugar + oxygen

Chemical equation: light energy + CO₂ + H₂O = CH₂O + O₂

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The disadvantages of photosynthesis are that if the amount of carbon dioxide and water is limited the making of sugar and oxygen will slow down.

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the Briggsrauscher is being applied for measurement of antioxidant activity of water-soluble substances.

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The sparks and the steam are the products also the molten metal