Question

molecular formula , constituent elements , symbol and number of atoms and characteristics of chalk


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Answer 1

Answer:

molecular formula = CaCO3 (calcium carbonate)

constituent elements = calcium, carbon and ozone(oxygen)

symbol= calcium (Ca), carbon (C), ozone(O3) = CaCO3

no. of atoms= 5

characteristics of chalk=

Chalk is a sedimentary rock made of calcium carbonate.

Chalk is a sedimentary rock made of calcium carbonate.It is porous and allows water to penetrate into the rock.

Chalk is a sedimentary rock made of calcium carbonate.It is porous and allows water to penetrate into the rock.Dry valleys are a common feature

Chalk is a sedimentary rock made of calcium carbonate.It is porous and allows water to penetrate into the rock.Dry valleys are a common featureWhere the chalk (permeable) meets an impermeable rock (frequently clay) springs form and can be seen when rivers begin to flow at the surface.

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Answer 2

Answer:

Chalk forms under deep marine conditions, when micro-organisms called coccolithophores shed calcite plates and these tiny plates accumulate. Chalk has high resistance to weathering and can form tall cliffs where chalk ridges connect with the sea.

Chalk is used in agriculture to raise the pH in highly acidic soils. In small doses chalk can be used as an antacid. Toothpaste often contains small amounts of chalk because of its usefulness as a mild abrasive

Chalk is a soft, white, porous, sedimentary carbonate rock, a form of limestone composed of the mineral calcite. Calcite is an ionic salt called calcium carbonate or CaCO3.

The chemical formula for chalk is CaCO3 (calcium carbonate) and its molecular weight is 100.0869 amu