What we will do What we will learn 10N 27 Mahuru 2017 Quick quiz and preliminaries How to start well Examine solubility, insolubility, solutions and precipitates (Practical work with word equ’ns, symbol equ’ns and balancing) Why some “mixes” make “solid snow” If time, examine complete and incomplete combustion PLUS the buzzwords “exothermic” and “endothermic” How different fuels behave in engines and Bunsens Learn how to make a decision based on evidence (individual decisions may vary) AND SUPPORT IT WITH EVIDENCE How to make a call and back it

10N – Seating Plan Front of lab - Whiteboard

HW item Skills practiced Pages 1 – 25 of Motion booklet Due Pd 2, Thursday 27 July 2017 Movement, forces and acceleration Pages 26 - 40 of Motion/Light booklet Due Pd 2, Thurs 7 Sept 2017 (Sorry Zach) How light behaves. End of Topic Test: Motion & Light Due Pd 5, Fri 25th of Aug 2017 How well we learned the material in the unit on Motion and Light

Ammonium Oxide, Sodium Oxide, Potassium Oxide, Silver Oxide, Hydrogen Oxide, Calcium Oxide, Magnesium Oxide, Copper Oxide, Lead Oxide, Barium Oxide, Zinc Oxide, Aluminium Oxide, Ammonium Sulfide, Sodium Sulfide, Potassium Sulfide, Silver Sulfide, Hydrogen Sulfide, Calcium Sulfide, Magnesium Sulfide, Copper Sulfide, Lead Sulfide, Barium Sulfide, Zinc Sulfide, Aluminium Sulfide, Ammonium Carbonate, Sodium Carbonate, Potassium Carbonate, Silver Carbonate, Hydrogen Carbonate, Calcium Carbonate, Magnesium Carbonate, Copper Carbonate, Lead Carbonate, Barium Carbonate, Zinc Carbonate, Aluminium Carbonate, Ammonium Sulfate, Sodium Sulfate, Copper Sulfate, Lead Sulfate, Barium Sulfate, Zinc Sulfate, Aluminium Sulfate, Ammonium Hydroxide, Sodium Hydroxide, Potassium Hydroxide, Silver Hydroxide, Hydrogen Hydroxide, Calcium Hydroxide, Magnesium Hydroxide, Copper Hydroxide, Lead Hydroxide, Barium Hydroxide, Zinc Hydroxide, Aluminium Hydroxide, Ammonium Chloride, Sodium Chloride, Potassium Chloride, Silver Chloride, Hydrogen Chloride, Calcium Chloride, Magnesium Chloride, Copper Chloride, Lead Chloride, Barium Chloride, Zinc Chloride, Aluminium Chloride, Ammonium Nitrate, Sodium Nitrate, Potassium Nitrate, Silver Nitrate, Hydrogen Nitrate, Calcium Nitrate, Magnesium Nitrate, Copper Nitrate, Lead Nitrate, Barium Nitrate, Zinc Nitrate, Aluminium Nitrate,

Incompatible Ions. There are times when we mix two ionic solutions together and this causes two ions that were not together to become mixed. For some combinations of ions, these become insoluble and form solids that settle out of solution. These settled solids are called precipitates (because they “fall out” like rain and snow “fall out”)

Rules for Dissolving Compound Type Solubility Nitrates All soluble Chlorides All soluble except Silver Chloride and Lead Chloride Sulfates/Sulphates All soluble except Lead Sulphate, Calcium Sulphate and Barium Sulphate

Compound Type Solubility Carbonates All INSOLUBLE except for those of group one (Na, K…) Hydroxides All INSOLUBLE except those of group one (Na, K…)

A chemical reaction that releases heat energy A chemical reaction that releases heat energy. It does this by being warmer than the surrounds so heat goes outwards. It will feel hot. A chemical reaction that ABSORBS heat energy. It does this by being COLDER than the surrounds so heat goes INwards. It will feel COLD.

Combustion. There are two main types of combustion. Complete combustion: all of the fuel gets burnt and the ONLY products are Carbon Dioxide and Water Incomplete combustion: the fuel is only partly burnt and some Carbon MONoxide or some Carbon (soot) are produced too.

Methane Petrol Diesel Gas 55 000 Y N Liquid 42 000 30 000 Fuel State Energy released from 1g of fuel (J) Does the fuel produce this product when burnt? Water Carbon Carbon Monoxide Methane Gas 55 000 Y N Petrol Liquid 42 000 Diesel 30 000 Which reactions are endothermic and which are exothermic? What does “complete combustion” mean? What does “incomplete combustion” mean? Which fuel(s) burn completely? Which fuel(s) burn incompletely? DISCUSS which fuel would be the “best” to use in your car. Make sure you include: The energy released The products released The effect on the environment