A chemistry teacher mixes two clear substances together and notices a solid forming at the bottom of the beaker then the teacher demonstrating chemical change
A chemical changes happen when bond are broken and new ones are created and thus in science lab cash mixes two clear liquid together in a beaker and bubbles are produced and white solid form and settle to the bottom means it is a precipitate and when heat the beaker over low heat and make more observation in a chemical change and as we know that chemical change are irreversible change and come out with new product always
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