Question detail
For Mass changes when a reactant or product is a gas, which option best supports this Unit 4.3 objective: Interpret investigations of mass changes using suitable apparatus. (AT 1, AT 2, AT 6)?
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. The escape or uptake of gases
- B. The temperature of the reaction
- C. The type of reactants used
- D. The color change of the reactants
Answer
The correct option is The escape or uptake of gases.
Explanation
The correct option is The escape or uptake of gases. The escape or uptake of gases is correct because it directly supports the approved learning objective to interpret investigations of mass changes using suitable apparatus. (AT 1, AT 2, AT 6). The reasoning belongs to Mass changes when a reactant or product is a gas within Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations, so it should not be confused with nearby quantitative ideas such as mass, moles, concentration, yield, atom economy, or gas volume unless those are named in the objective. Use the focus term mass change to keep the answer aligned with AQA GCSE Chemistry 8462 Unit 4.3. The other options are weaker because they either use the wrong formula, the wrong unit, a vague relationship, or the wrong quantitative context.
Common mistake
Misunderstanding Apparatus Use
Students often confuse the types of apparatus needed for measuring mass changes in reactions involving gases, leading to inaccurate results.
Ensure to review the specific apparatus suitable for measuring mass changes, such as balances and gas syringes, and practice interpreting their use in experiments.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.