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Chemistry - Chemical Reactions - Signs of a chemical reaction - Sign or No Sign?
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Chemistry - Chemical Reactions - Signs of a chemical reaction - Sign or No Sign?

vivmagarwal
vivmagarwalJan 29, 2026

Description

A 10-question assessment. Statement 1: 'Bubbles forming when you open a soda can is a sign of a chemical reaction' (False! The CO₂ was already dissolved, just escaping. Physical change!). Statement 2: 'An iron nail turning orange-brown over weeks indicates a reaction' (True - rust forming, color cha

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ChemistryChemical ReactionsStage 7, Class 7, Class 7, MYP Grade 7, Grade 7

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