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Two colorless solutions are mixed together in a test tube. A student observes that a bright yellow solid collects at the bottom of the test tube. Is this is physical or chemical change? Cite evidence to
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Two colorless solutions are mixed together in a test tube. A student observes that a bright yellow solid collects at the bottom of the test tube. Is this is physical or chemical change? Cite evidence to support your answer.

User Yamilet
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2 Answers

3 votes

Answer:

It is a chemical reaction , a chemical change.

The colourless solutions can be
KIand
Pb(NO_3)_2.

When they are mixed , displacement reactiom takes place and Lead iodide is formed which is yellow in colour

User Dilshan
by
4.6k points
3 votes

Answer:

It is a chemical change

Step-by-step explanation:

The chemicals are creating a new compound structure

User Michael De Keyser
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4.6k points
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