Nonmetal oxides are known as acidic oxides because they dissolve in water forming acidic solutions, we can use water to differentiate between calcium and zinc because calcium can react with cold water, while zinc...
Matter is anything that has a mass & occupies a space, Mass is the amount of matter that the body contains, The measuring unit of mass is gm or kg, Volume is the space...
Metals are elements that are typically: Shiny (lustrous), Good conductors of heat and electricity, Malleable (can be hammered into sheets), Ductile (can be drawn into wires), and Solid at room temperature (except mercury).