Empirical Formula from Models

This ppt talks students through how to look at a model and explains how to calculate an empirical formula from it. It can be used as starter in a lesson before questions on this topic.
A full version of this lesson is available here (together with balancing equations leson):
https://www.tes.com/teaching-resource/balancing-full-and-half-equations-and-empirical-formula-from-models-lesson-12233404
Hope you find this useful.

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