Question

james is baking a cake. he notices that after mixing all the ingredients and baking, the total mass of the cake and the gases released is the same as the mass of the original ingredients. this shows that matter can not be created nor destroyed. it can only be
destroyed a little bit
transformed, changed
invisible
none of the above

Explanation:

Step1: Recall the law of conservation of mass

The law of conservation of mass states that matter can neither be created nor destroyed in a chemical reaction. It can only be transformed or changed in form.

Step2: Analyze each option

• "Destroyed a little bit": Contradicts the law of conservation of mass.
• "Invisible": Mass is not about visibility. The law is about creation/destruction.
• "None of the above": Since the correct concept is transformation (as per the law), this is incorrect.
• "Transformed, changed": This aligns with the law of conservation of mass. When ingredients are mixed and baked, the matter (mass) is just transformed (e.g., chemical reactions occur, but no mass is created or destroyed).

Answer:

Transformed, changed