Element Card 12 Lesson 7 Manganese - Mr. Fiegel and Mrs...
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EXPERIMENTING WITH MIXTURES, COMPOUNDS, AND ELEMENTS The STC Program™ © Smithsonian Institution 1244°C 1962°C 7.4 g/cm 3 Manganese conducts electricity and is hard. Manganese reacts with air slowly (faster if water is present) and with dilute acids. One compound of manganese is manganese dioxide, which is black. Another is potassium permanganate, which is purple. Manganese is added to iron to make very strong steel alloys (for example, for railroad tracks, safes, and armor plate). Manganese dioxide is used in dry-cell batteries. Melting Point Boiling Point Density Appearance Other Physical Properties Chemical Properties Compounds Uses Notes THIS SPONGE AND THE MANGANESE-COATED ROCK ON WHICH IT SAT WERE COLLECTED FROM THE ATLANTIC OCEAN. PHOTO: Islands in the Stream Expedition of 2002, NOAA Office of Ocean Exploration MANGANESE IS ADDED TO STEEL TO MAKE ALLOYS THAT ARE VERY STRONG. RAILROAD TRACKS, WHICH CARRY VERY HEAVY LOADS, ARE OFTEN MADE FROM THIS TYPE OF STEEL. PHOTO: John Loo/creativecommons.org Element Card 12 • Experimenting with Mixtures, Compounds, and Elements • Lesson 7 Manganese
Transcript of Element Card 12 Lesson 7 Manganese - Mr. Fiegel and Mrs...
EXPERIMENTING WITH MIXTURES, COMPOUNDS, AND ELEMENTSThe STC Program™© Smithsonian Institution
1244°C
1962°C
7.4 g/cm3
Manganese conducts electricity and is hard.
Manganese reacts with air slowly (faster if water is present) and with dilute acids.
One compound of manganese is manganese dioxide, which is black. Another is potassium permanganate, which is purple.
Manganese is added to iron to make very strong steel alloys (for example, for railroad tracks, safes, and armor plate). Manganese dioxide is used in dry-cell batteries.
Melting Point
Boiling Point
Density
Appearance
Other Physical Properties
Chemical Properties
Compounds
Uses
Notes
THIS SPONGE AND THE MANGANESE-COATED ROCK ON WHICH IT SAT WERE COLLECTED FROM THE ATLANTIC OCEAN. PHOTO: Islands in the Stream Expedition of 2002, NOAA Office of Ocean Exploration
MANGANESE IS ADDED TO STEEL TO MAKE ALLOYS THAT ARE VERY STRONG. RAILROAD TRACKS, WHICH CARRY VERY HEAVY LOADS, ARE OFTEN MADE FROM THIS TYPE OF STEEL. PHOTO: John Loo/creativecommons.org
Element Card 12 • Experimenting with Mixtures, Compounds, and Elements • Lesson 7 Manganese
