What type of bond does lead and iron form?

A. covalent

B. ionic

C. metallic

If soap hits the floor, is the soap dirty or the floor

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead