TEKS: Chapter 112. Science See All Teacher Resources
112.35.c.8
(8) Science concepts. The student can quantify the changes that occur during chemical reactions. The student is expected to:
- (A) define and use the concept of a mole;
- (B) calculate the number of atoms or molecules in a sample of material using Avogadro's number ;
- (C) calculate percent composition of compounds ;
- (D) differentiate between empirical and molecular formulas;
- (E) write and balance chemical equations using the law of conservation of mass ;
- (F) differentiate among double replacement reactions, including acid-base reactions and precipitation reactions, and oxidation-reduction reactions such as synthesis, decomposition, single replacement, and combustion reactions;
- (G) perform stoichiometric calculations, including determination of mass and gas volume relationships between reactants and products and percent yield ; and
- (H) describe the concept of limiting reactants in a balanced chemical equation.