
Criss-cross formula explain card
Use these labels to connect observation with the chemistry idea in criss-cross formula.- 1Valency 1 -> Subscript: crosses to
- 2Symbol 1 -> Symbol 2: combines with
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Lesson
Valency is the combining capacity of an element or radical. Formulae are written by balancing valencies so the compound is electrically neutral.
Learning objectives
Explain Valency and Formulae using correct chemistry terms.
Use observations, symbols, formulae, or tests as evidence.
Connect the evidence to the final conclusion.
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