Question detail
What is an ionic equation?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes
Question
- A. A representation of a chemical reaction showing only the particles that change
- B. A formula that describes the total number of atoms in a compound
- C. An equation that shows the mass of reactants and products
- D. A diagram that illustrates the arrangement of electrons in an atom
Answer
The correct option is A representation of a chemical reaction showing only the particles that change.
Explanation
The correct option is A representation of a chemical reaction showing only the particles that change. A representation of a chemical reaction showing only the particles that change is correct because it directly supports the approved learning objective to (HT only) Write balanced half equations and ionic equations where appropriate. This is tested in the subtopic Atoms, elements and compounds within A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, so the reasoning must stay within AQA GCSE Chemistry 8462 Unit 4.1. The other options are weaker because they either confuse a nearby Chemistry concept, use the wrong subtopic context, or do not answer Atoms, elements and compounds precisely. Repair marker ded9ca26 keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Common Mistake in Ionic Equations
Students often forget to balance the charges in ionic equations, leading to incorrect representations of the reactions.
Always ensure that the total charge on both sides of the ionic equation is equal by adjusting the coefficients of the ions.
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