SEARCH Articles Figures Tables Human error skill-based Skill 10.1 Analyzing acids and bases according to acid-base theories (i.e., Arrhenius, Bronsted-Lowry, Lewis) Skill 12.11-Based on position in the periodic table, predict which elements have characteristics of metals, semimetals, nonmetals, and inert gases Skill 19.3 Demonstrate knowledge of basic techniques used to separate substances based on differences in properties Skill 25.5 Design and analyze the results of an acid-base titration Skill 7.6 Predicting physical and chemical properties based on the bonding in a substance Skill based Skill based performance Skill-based behaviour Skill-based errors