Name
Date
Properties before and after reactions — Homework
Answer using this week's chemical-properties ideas.
- 1.Classify: "this metal is shiny and dense." Physical or chemical property?
- 2.Classify: "this metal rusts in damp air." Physical or chemical property?
- 3.Explain, using atoms, why mass is conserved in a chemical reaction.
- 4.A burned marshmallow weighs much less than before burning. Does this disprove conservation of mass? Explain.
🌲 Homeschool of the FutureSeventh Grade · Science · week 29 homework