Chemistry B (9-1) - Twenty First Century Science Suite J258 9-1: Chemical patterns Topical Past Paper Questions
OCR GCSE (9-1) Chemistry B (9-1) - Twenty First Century Science Suite J258 (9-1) past-paper questions on Chemical patterns, free. This topic is frequently examined across 6 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A student investigates the reaction of an element with oxygen gas, $ O_{2} $, to make an oxide. They calculate the number of moles of the element that react with different numbers of moles of oxygen gas. The graph shows their results. Number of moles of element (a) The student co…
A three-dimensional model for solid sodium chloride is shown in Fig. 9.1. Fig. 9.1 (a) Draw a two-dimensional diagram to show the arrangement of ions in sodium chloride. Use these symbols. Show at least eight ions. [2] (b) Explain why the model shown in Fig. 9.1 cannot be used to…
Layla heats a small piece of sodium. She then puts it in a jar of chlorine gas, as shown: The sodium burns with a bright flame. A white solid is formed. She repeats the experiment using different Group 1 and Group 7 elements. She uses jars containing group 7 gases. (a) Complete t…
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