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Chemical misconceptions

23
Precipitation
  • 1
    Overview
  • 2
    Alternative conceptions in chemistry teaching
  • 3
    Concepts in chemistry
  • 4
    The structure of chemical knowledge
  • 5
    Overcoming learning impediments
  • 6
    Scaffolding learning in chemistry
  • 7
    Chemical axioms
  • 8
    Chemical structure
  • 9
    Chemical bonding
  • 10
    Chemical reactions
  • 11
    Constructing chemical conceptions
  • 12
    Elements, compounds and mixtures
  • 13
    Mass and dissolving
  • 14
    Changes in chemistry
  • 15
    Revising acids
  • 16
    Word equations
  • 17
    Definitions in chemistry
  • 18
    Types of chemical reaction
  • 19
    Revising the periodic table
  • 20
    Predicting the melting temperature of carbon
  • 21
    Iron - a metal
  • 22
    Ionic bonding
  • 23
    Precipitation
  • 24
    Spot the bonding
  • 25
    Hydrogen fluoride
  • 26
    An analogy for the atom
  • 27
    Ionisation energy
  • 28
    Chemical stability
  • 29
    Stability and reactivity
  • 30
    Interactions
  • 31
    Acid strength
  • 32
    Reaction mechanisms
  • 33
    Scaffolding explanations
  • 34
    Chemical comparisons
  • 35
    Learning impediment diary
Resources

Precipitation

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Chemistry is a conceptual subject and, in order to explain many of these concepts, teachers use models to describe and explain the microscopic world and relate it to the macroscopic properties of matter. This resource is designed to provide strategies for dealing with some of the misconceptions that students have in the form of ready-to-use classroom resources.

Downloads

  • Precipitation 

    Handout | PDF, Size 0.18 mb

Websites

  • Buy Chemical misconceptions II book: £19.95

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Chemical misconceptions

  • 1
    Covers of volumes 1 and 2 of Chemical misconceptions

    Overview

  • 2
    Image

    Alternative conceptions in chemistry teaching

  • 3
    Image

    Concepts in chemistry

  • 4
    Image

    The structure of chemical knowledge

  • 5
    Image

    Overcoming learning impediments

  • 6
    Image

    Scaffolding learning in chemistry

  • 7
    Image

    Chemical axioms

  • 8
    Image

    Chemical structure

  • 9
    Image

    Chemical bonding

  • 10
    Image

    Chemical reactions

  • 11
    Image

    Constructing chemical conceptions

  • 12
    Image

    Elements, compounds and mixtures

  • 13
    Image

    Mass and dissolving

  • 14
    Image

    Changes in chemistry

  • 15
    Image

    Revising acids

  • 16
    Image

    Word equations

  • 17
    Image

    Definitions in chemistry

  • 18
    Image

    Types of chemical reaction

  • 19
    Image

    Revising the periodic table

  • 20
    Image

    Predicting the melting temperature of carbon

  • 21
    Image

    Iron - a metal

  • 22
    Image

    Ionic bonding

  • 23
    ImageCurrently reading

    Precipitation

  • 24
    Image

    Spot the bonding

  • 25
    Image

    Hydrogen fluoride

  • 26
    Image

    An analogy for the atom

  • 27
    Image

    Ionisation energy

  • 28
    Image

    Chemical stability

  • 29
    Image

    Stability and reactivity

  • 30
    Image

    Interactions

  • 31
    Image

    Acid strength

  • 32
    Image

    Reaction mechanisms

  • 33
    Image

    Scaffolding explanations

  • 34
    Image

    Chemical comparisons

  • 35
    Image

    Learning impediment diary

Level

  • 14-16 years
  • 16-18 years

Use

  • Handout
  • Worksheet
  • Download

Category

  • Misconceptions
  • Matter
  • Compounds and mixtures
  • Properties of matter
  • Structure and bonding
  • Atoms and bonds

Specification

  • England
    • A/AS level
      • Edexcel Chemistry
        • Topic 4: Inorganic Chemistry and the Periodic Table
          • Topic 4B: The elements of Group 7 (halogens)
            • 13 ii. precipitation reactions of the aqueous anions Cl⁻, Br⁻ and I⁻ with aqueous silver nitrate solution, followed by aqueous ammonia solution
      • OCR Chemistry A
        • Module 3: Periodic table and energy
          • 3.1 The periodic table
            • 3.1.3 The halogens
              • g) the precipitation reactions, including ionic equations, of the aqueous anions Cl⁻, Br⁻ and I⁻ with aqueous silver ions, followed by aqueous ammonia, and their use as a test for different halide ions.
    • GCSE
      • AQA Chemistry
        • 4.8 Chemical analysis
          • 4.8.3 Identification of ions by chemical and spectroscopic means
            • 4.8.3.4 Halides
              • Halide ions in solution produce precipitates with silver nitrate solution in the presence of dilute nitric acid. Silver chloride is white, silver bromide is cream and silver iodide is yellow.
      • Edexcel Chemistry
        • Topic 9 - Separate chemistry 2
          • Qualitative analysis: test for ions
            • 9.5Cc chloride ion, Cl⁻, bromide ion, Br⁻, iodide ion, I⁻, using dilute nitric acid and silver nitrate solution
      • OCR Chemistry B: 21st century
        • C5 Chemical analysis
          • C5.2 How do chemists find the composition of unknown samples?
            • C5.2.4 describe tests to identify aqueous cations and aqueous anions and identify species from test results including: tests and expected results for metal ions in solution by precipitation reactions using dilute sodium hydroxide (calcium, copper, iron(I…
  • Scotland
    • National 5
      • SQA Chemistry
        • Chemistry in society
          • Chemical analysis
            • General practical techniques
              • preparation of insoluble salts by precipitation
  • Wales
    • GCSE
      • WJEC Chemistry
        • Unit 1: CHEMICAL SUBSTANCES, REACTIONS and ESSENTIAL RESOURCES
          • 1.2 ATOMIC STRUCTURE AND THE PERIODIC TABLE
            • (t) the identification of Li⁺, Na⁺, K⁺, Ca²⁺ and Ba²⁺ ions by flame tests and Cl⁻, Br⁻ and I⁻ ions by their reactions with silver nitrate solution (including ionic equations)
      • WJEC Combined science
        • Unit 2: Chemistry 1
          • 2.2 ATOMIC STRUCTURE AND THE PERIODIC TABLE
            • (s) the identification of Li⁺, Na⁺, K⁺, Ca²⁺ and Ba²⁺ ions by flame tests and Cl⁻, Br⁻ and I⁻ ions by their reactions with silver nitrate solution (including ionic equations)
  • Northern Ireland
    • GCSE
      • CCEA Chemistry
        • Unit 1: Structures, Trends, Chemical Reactions, Quantitative Chemistry and Analysis
          • 1.2 Bonding
            • 1.2.3 demonstrate knowledge and understanding that: ionic bonding involves attraction between oppositely charged ions; ionic bonds are strong; and substantial energy is required to break ionic bonds;
          • 1.3 Structures
            • 1.3.2 recall that most ionic compounds are soluble in water;
      • CCEA Double award science
        • Unit C1: Structures, Trends, Chemical Reactions, Quantitative Chemistry and Analysis
          • 1.2 Bonding
            • 1.2.4 demonstrate knowledge and understanding that: ionic bonding involves attraction between oppositely charged ions; ionic bonds are strong; and substantial energy is required to break ionic bonds;
          • 1.3 Structures
            • 1.3.2 recall that most ionic compounds are soluble in water;
  • Republic of Ireland
    • Leaving Certificate
      • Chemistry
        • 2. Chemical bonding
          • 2.2 Ionic Bonding
            • Depth of treatment
              • Positive and negative ions.
              • Ionic bonding as electron transfer.
              • Sodium chloride crystal structure.
              • Characteristics of ionic substances.

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    This resource includes information about some key misconceptions that have been uncovered by research and ideas about a variety of teaching approaches that may help avoid students acquiring some common misconceptions.

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