CHEM 1010U Lecture Notes - Lecture 4: Ionic Compound, Chemical Equation, Electrolyte
Document Summary
Ex lead nitrate with potassium iodide: most precipitation take place when anions and cations of two ionic compounds change place. Acid base neutralization reactions: acid + base = water and an ionic compound termed a salt, recall: Base produce oh- ions: neutralization reactions therefore produce h2o by removing h+ and oh- ions from solution (hcl(aq) + naoh(aq)-> h2o(l) +nacl. Oxidation reduction reactions: also known as a redox reaction, one or more electrons are transferred between reaction partners (atoms, molecules or ions, charges on atoms change. Mg atom gives an electron to each of 2h+ ions. Electrolytes: substances which dissolve in water to produce conducting solutions of ions. Nonelectrolytes: substances which do not produce ions in aqueous solutions. Strong electrolytes: strongly dissociates- has a lot of ions can conduct electricity easily. Weak electrolytes: - weakly dissociates - wont conduct electricity really well. Molecular equation: all substances in the chemical equation are written using their complete formulas as if they were molecules.
