Form 7: Mass Conservation in Changes Exercise

Form 7: Mass Conservation in Changes

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Form 7: Mass Conservation in Changes

In this engaging exercise, students will explore the principle of mass conservation through hands-on experiments and interactive activities, demonstrating how mass remains constant during physical and chemical changes. By observing and measuring various transformations, learners will enhance their understanding of fundamental scientific concepts and develop critical thinking skills.

Questions

  1. MultiChoice

    According to the Law of Conservation of Mass, during a physical change:

  2. MultiChoice

    If 100 grams of ice melt inside a sealed jar, what is the mass of the resulting water?

  3. MultiChoice

    If 10 grams of sugar dissolve in 100 grams of water, what is the mass of the sugar solution?

  4. MultiChoice

    In a closed system, the mass of all products in a chemical reaction:

  5. MultiChoice

    When wood burns in an open fireplace, ash weighs less than original wood because:

  6. MultiChoice

    50g of reactant A reacts completely with 25g of reactant B in a closed flask. Mass of products is:

  7. MultiChoice

    An iron nail weighs more after rusting than before rusting because:

  8. MultiChoice

    The Law of Conservation of Mass states that:

  9. MultiChoice

    15g of vinegar reacts with baking soda in a open beaker. Final mass is 10g. Gas mass escaped is:

  10. MultiChoice

    30 grams of liquid water freezes into ice in a sealed container. Mass of ice:

  11. MultiChoice

    Why does total mass remain constant in a chemical change inside a sealed box?

  12. MultiChoice

    To prove mass conservation when baking soda reacts with vinegar, a student must: