Question detail
Case 35 exam-language. Which response would earn credit for the calculation method? Focus on the relative formula mass compound its chemical in Relative formula mass, not on a neighbouring Unit 4.3 idea.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations
Question
- A. Case 35 exam-language: Show formula, substitution, calculation, final answer, and unit for the relative formula mass compound its chemical
- B. Case 35 exam-language: Write only the final answer with no working (Relative formula mass)
- C. Case 35 exam-language: Describe the practical method instead of the calculation relationship (the relative formula mass compound its chemical)
- D. Case 35 exam-language: Quote the topic title without applying it to the data (Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations)
Answer
The correct option is Case 35 exam-language: Show formula, substitution, calculation, final answer, and unit for the relative formula mass compound its chemical.
Explanation
The correct option is Case 35 exam-language: Show formula, substitution, calculation, final answer, and unit for the relative formula mass compound its chemical. It supports the approved learning objective by keeping the method tied to the relative formula mass compound its chemical in Relative formula mass. The other options are incorrect because they either use the wrong quantitative relationship, lose the required unit, confuse coefficients with subscripts, or report an answer without a complete worked method.
Common mistake
Misunderstanding Relative Formula Mass Calculation
Students often forget to multiply the relative atomic mass by the number of atoms indicated by the subscripts in the chemical formula.
Always ensure to multiply the relative atomic mass of each element by its subscript in the formula before summing them to find the relative formula mass.
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