Fundamental Concepts of ChemistryReversible Physical Changes6Choose the best answerWhich description best represents a reversible physical change?APermanent and reversibleBTemporary and irreversibleCTemporary and reversibleDPermanent and irreversible Like 4 Discuss 0Share
Fundamental Concepts of ChemistryDiffusion7Choose the best answerThe spontaneous mixing and spreading of particles is called:AEvaporationBSublimationCDiffusionDBoiling Like 0 Discuss 0Share
Fundamental Concepts of ChemistryStates of Matter8Choose the best answerAccording to the source framing, the liquid state of matter is:AThe least common of the three ordinary physical statesBAlways the most dense stateCMore common than all gasesDAlways the most common state Like 0 Discuss 0Share
Fundamental Concepts of ChemistryChemical Changes9Choose the best answerWhich is an example of a chemical change?ABoiling of waterBBurning of paperCEvaporation of waterDMelting of ice Like 0 Discuss 0Share
Fundamental Concepts of ChemistryAtoms and Molecules10Choose the best answerWhich phrase is scientifically acceptable?AA molecule of a compoundBA molecule of an elementCAn atom of an elementDAll of these Like 0 Discuss 0Share