Tuesday, March 7, 2017

Exothermic is a reaction or process accompanied by the release of heat. It is formed from its constituent elements with a net release of heat. And endothermic is a
Reaction or process accompanied by or requiring the absorption of heat.

Sunday, March 5, 2017

Reactants: Sulphur S8 (needs to gain 2 electrons), Iron Fe (wants to lose 3 electrons)
Fe: black powder
S8: yellow powder
Reaction: we mixed the 2 powder and we burned the glass stick. Then we put the stick in to the mixed powder. The reaction happened quickly and a black kind of coal was left after the reaction. and it turned into solid fromm powder.
Products: change of colors, turned into solid,

Conclusion and Analysis
Type of reaction: This is a chemical reaction because the fire burned the powder fast I thi9nk it have a bad odor because they burned the powder and the colors change                                                                                                                                                                                                                            
Fe (3) + S(8)      =       FeS(11) 
i think this is a synthesis

Tuesday, February 14, 2017

Potassium chlorate is a compound that contain potassium, chlorine and oxygen atoms, with the molecular formula KCLO3. It is the most common chlorate in industrial use.The combination of potassium chloride and oxygen is potassium chlorate. The equation for potassium chloride and oxygen is 2 KCI (potassium chloride)+3O2 (oxygen). The combination of 2KCI+3O2 is equal to 2KCIO3.
There are 2 potassium and 2 chlorine atoms in both the reactants and the product. There are actually 6 oxygen atoms in the reactants but the product only have three
3 oxygen atoms so that makes the chemical equation unbalanced. The reactants is when the chlorine (CI), potassium (K) and oxygen (O) are all joined in the same bond all together. And the product is when there are 2 three parts of oxygen in a bond and 2, potassium and chlorine in a bond.
Potassium chlorate is used in chemical oxygen generator which is also called chlorate candle or oxygen candle, employed as oxygen-supply system of things like submarine and etc. The decomposition of potassium chlorate is also used to provide the oxygen supply for limelights. Potassium chlorate is also used as a pesticide. It can react with sulfuric acid to form a highly reactive solution of chloric acid and potassium sulfate.