Chem 106- Exam 3 2023 with 100% correct questions and answers

Boiling point of a liquid is depending upon? Altitude What is formed in a precipitation reaction? Water insoluble product Gaining electrons during the chemical change? Reduction Matter state that can be split into ions in solution? Aqueous (aq) Size and shape of a gas? Volume and shape are determined by the contain Example for colloid? Milk Oil is said to be Immiscible in water Solvent-Solute interaction is higher than solute-solute and solvent-solvent solutions True No electron transfer; oxidation number is same Non-Redox Oxygen oxidation number -2 (except peroxides) Hydrogen oxidation number Always +1 Oxidation loss of electrons, increase in oxidation state Reduction gain of electrons, decrease in oxidation number Combination reaction A + B -- AB Redox or non-redox Decomposition reaction A -- B + C Redox or non-redox Single displacement reaction A + BC -- AC + B Always redox Double displacement reaction AB + CD -- AD + CB Non-redox Energy will be released Exothermic Energy is required for the reaction Endothermic Percent yield actual yield/theoretical yield x 100 Stored energy Potential Energy Potential energy equation PE=mgh Energy in motion kinetic energy Kinetic energy equation KE = 1/2mv^2 Definite shape and volume; high density Solids Definite shape, not volume Liquid No definite shape or volume; low density Gas Liquid to gas evaporation/ Vaporation, (endothermic) Gas Law PV=nRT Gas to liquid condensation (exothermic) Solid to gas sublimation, (endothermic) Solid to liquid Melting, (endothermic) Non-polar liquids have ... vapor pressure than polar liquids? Higher Specific heat equation Heat = mcΔT What have low specific heat Metals Solute Smaller percentage How to find limiting reactant Convert to moles What has a low solubility at a higher temp in water? NH3 (g) For ALL gases, as temperature increases the solubility _________ Decreases Br2 is insoluble in water, but fairly soluble in hexane. Whats interpreted about the nature of the Br2 molecule? Non-polar solute Comparing theoretical yield Use largest number Iron gets oxidized ...