QMRP is an acronym for Qualified Mental Retardation Professional. This term was first used in federal standards developed in the late 1970s and early 1980s for intermediate care facilities for the developmentally disabled (ICF/DD).
Physical properties. Calcium is a fairly soft metal with a shiny silver surface when first cut. The surface quickly becomes dull as calcium reacts with oxygen to form a coating of white or gray calcium oxide. Calcium's melting point is 850Â°C (1,560Â°F) and its boiling point is 1,440Â°C (2,620Â°F).
Calcium: Physical Properties --silver-grey metal. melts at 840Â°C, boils at 1484Â°C to produce monatomic gas. density 1540 kg/m^3. Conductor of electricity but a poor one com â¦ pared to most other metals.Diamagnetic. Chemical properties -- tarnishes rapidly in air to produce a powdery, flaky oxide coating.Reacts steadily with water, giving off bubbles of hydrogen and a solution/slurry of alkaline, sparingly soluble calcium hydroxide. Flammable at high temperatures with oxygen, or air.an also burn in nitrogen to form calcium nitride or carbon dioxide to form calcium carbonate. Nearly all compounds are in oxidation state +2, and the water chemistry of calcium is dominated by the hydrated Ca(2+) ion.