teks: 7.6 c distinguish between physical and chemical changes in matter · essential questions · how are…

teks: 7.6 c distinguish between physical and chemical changes in matter · essential questions · how are physical properties and chemical properties different? · what are indications that a chemical change has taken place? · what are indications that a physical change has taken place? student learning objectives i can distinguish between physical and chemical changes in matter.

teks: 7.6 c distinguish between physical and chemical changes in matter · essential questions · how are physical properties and chemical properties different? · what are indications that a chemical change has taken place? · what are indications that a physical change has taken place? student learning objectives i can distinguish between physical and chemical changes in matter.

Answer

Brief Explanations:

Physical properties can be observed or measured without changing the substance's identity, like color or state. Chemical properties involve a substance's ability to undergo chemical changes, forming new substances. Indicators of a chemical change include production of gas, heat, light, color - change, or formation of a precipitate. Indicators of a physical change are changes in state (solid - liquid - gas), shape, or size without altering the substance's chemical composition.

Answer:

Physical properties are characteristics observed without changing a substance's identity. Chemical properties involve the ability to undergo chemical reactions. Indicators of a chemical change are gas production, heat/light emission, color - change, or precipitate formation. Indicators of a physical change are changes in state, shape, or size without a change in chemical composition.