This resource turns stoichiometry introduction into a complete, ready to use review for Grade 9-12 chemistry, covering the same NGSS standard from three different angles.
The set includes questions like "In the combustion reaction C₃H₈ + 5O₂ → 3CO₂ + 4H₂O, what is the mole ratio of O₂ to CO₂?", "In the reaction 2Mg + O₂ → 2MgO, how many moles of MgO can be produced from 4 moles of Mg?", and "What is the mole ratio of products to reactants in the reaction 2A + 3B → 4C + D?"
All three worksheets cover the same topic in different question styles. That means you can use one as a pretest, another for practice or homework, and the third as a follow up quiz, without students ever seeing the same question twice.
This set is part of a complete NGSS aligned chemistry unit. The unit also covers Law of Conservation of Mass, Balancing Equations Challenge, Mole Concept Quiz, Mass Mass Calculations, Mole Mole Problems, and Limiting Reactant, all in the same three worksheet format, so your classroom routine stays familiar while the topic changes.
Suitable for Grade 9-12 chemistry classes, and for NGSS aligned review at any point in the school year. This set is aligned to NGSS standard HS-PS1-7.
