Which reactions performed in the experiment involved chemical changes?
Check all changes that you listed.
Refer back to your data. List all indicators of chemical change that you observed.
gas, temperature changes.
How did the experiement with the iron filings and sulfur compare with the experiment in which copper(II) sulfate pentahydrate was heated?
Which real-world scenarios below represent physical changes? Check all that apply.
Another real-world example of a change is rust. Rust is iron(III) oxide (Fe2O3), which results when iron is exposed to oxygen and water. What are some indicators of rusting? Check all that apply.
Therefore, rust is a physical✔ chemicalphysical AND chemical change.
Based on the results of this lab, write a short paragraph that summarizes how to distinguish physical changes from chemical changes.
Physical changes alter a substance’s form, size, or state without changing its identity, so the original material can often be recovered. Chemical changes produce one or more new substances. Evidence of a chemical change may include the formation of a gas, solid, light, or heat.
How did the experiement with boiling water compare with the experiment in which magnesium was added to hydrochloric acid?
How closely did your response match the sample response above?
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