CAIE IGCSE Chemistry 13.2.3 Record Observations and Measurements Questions

Work through real CAIE IGCSE Chemistry questions to report multiple observations accurately and with appropriate descriptive precision.

Exam points

record visible observations such as bubbles, dissolution and solution colour with appropriate descriptive terms
record several independent observations from a reaction accurately and distinguish observation from inference
use suitable precision when noting visual changes in a practical investigation
present observations in a complete, ordered form when a question asks for multiple results

[Maximum number: 2]

Sulfuric acid is produced by the Contact process. The steps of the Contact process are shown.

Dilute sulfuric acid is a typical acid.

A student adds excess dilute sulfuric acid to a sample of solid copper(II) carbonate in a test-tube.

Give three observations the student would make.

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