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4.1 Predicting chemical reactions

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Question 35

A science museum has two sealed metal samples. Information about the samples is stored in a database.

SampleInformation
PSoft enough to cut with a knife; stored under oil because its shiny surface tarnishes quickly
QHigh density; forms coloured compounds

The database recommends that both samples can be rinsed briefly with cold water because neither will show a reaction.

Evaluate the database recommendation. Use the information in the table.

[4]
Markscheme

4.1 Predicting chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /4.1 Predicting chemical reactions

113 exam-style questions on OCR GCSE Chemistry 4.1 Predicting chemical reactions, covering 4.1.1 Properties and trends in Groups 1, 7 and 0, 4.1.2 Properties of the transition metals, 4.1.3 Reactivity predicted from position in the Periodic Table, and 4.1.4 Reactivity of metals and the reactivity series. Each one has a worked solution and a mark scheme showing where the marks go.

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