What are some physical properties of sand?

Answer 1

Sand is nothing but SiO2(silicon dioxide). Its physical properties are, if heated strongly, It gives off Silicon. It is insoluble in water. it is soluble in acids. it is a common compound in the earth.

Answer 2

Physical properties of sand:

grainy

white

fine.

Chemical properties of sand:

Formula- SiO2

It have 99.5% of SiO2 in pure condition. Al2O3 and Fe2O3 are present in it as a impurty. (0.5%).

Melting point of sand is 1722 degree centigrate. But with adding some fluxing agent its come down to 1290 deg centrigrate.

Answer 3

There are many different origins of "sand" some is predominately calcium from sea shells and coral, some is SiO2 [quartz], some AlO2, some volcanic glass, etc. and all combinations of these. Sand is particulate with grains often between 0,1 and 2,0 millimeters (coarser than this and it is called gravel finer and it is silt) there should not be much very fine [ < 0,01 mm] grains.

Wikipedia says:Sand feels gritty when rubbed between the fingers (silt, by comparison, feels like flour).

The composition of sand is highly variable, depending on the local rock sources and conditions. The bright white sands found in tropical and subtropical coastal settings are eroded limestone and may contain coral and shellfragments in addition to other organic or organically derived fragmental material.[2] The gypsum sand dunes of theWhite Sands National Monument in New Mexico are famous for their bright, white color. Arkose is a sand orsandstone with considerable feldspar content, derived from the weathering and erosion of a (usually nearby) graniticrock outcrop. Some sands contain magnetite, chlorite, glauconite or gypsum. Sands rich in magnetite are dark to black in color, as are sands derived from volcanic basalts and obsidian. Chlorite-glauconite bearing sands are typically green in color, as are sands derived from basaltic (lava) with a high olivine content. Many sands, especially those found extensively in Southern Europe, have iron impurities within the quartz crystals of the sand, giving a deep yellow color.

Answer 4

it is a solid and a mixture

ps find the third answer somewhere els

Answer 5

Its color(white or gold/yellow) and its texture(grainy)

Answer 6

No, it's neither of those things.

Answer 7

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