bubbling test tube Lesson 9: Law of Conservation of Mass factors of scientific literacy and foundational objectives, learning objectives, Science 10 Bibliography
See the experiment pictures
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Here are pictures of the reactions:

Reaction 1: Mix lead nitrate and potassium iodide solutions

Reaction 2: Mix copper sulfate and sodium hydroxide solutions

Reaction 3: Mix barium chloride and sodium sulfate solutions.

Reaction Picture of reactants Picture of mixing Picture of products
lead nitrate and potassium iodide solutions Pb(NO3)2 and KI before Pb(NO3)2 and KI during Pb(NO3)2 and KI after
copper sulfate and sodium hydroxide solutions CuSO4 and NaOH before CuSO4 and NaOH during CuSO4 and NaOH after
barium chloride and sodium sulfate solutions. BaCl2 and Na2SO4 before BaCl2 and Na2SO4 during BaCl2 and Na2SO4 after

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