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Calcium carbonate: Quiz


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Question 1: As the soda warms up, ________ is released.
Greenhouse gasCarbon cycleCarbon dioxideCarbon sink

Question 2:
What is the chemical name of Calcium carbonate (IUPAC)
N-Methyl-N-pentylnitrous amide
Calcium carbonate

Question 3: It is a common substance found in rock in all parts of the world, and is the main component of shells of marine organisms, snails, ________, and eggshells.

Question 4: We see that phosphoric acid is more efficient than a monoacid since at the final almost neutral pH, the second dissociated state concentration [HPO42-] is not negligible (see ________).
Sulfuric acidPhosphoric acidOxygenCitric acid

Question 5: Calcium carbonate is also used in a wide range of trade and ________ adhesives, sealants, and decorating fillers.
Punk subcultureDo it yourselfDIY ethicCraft (magazine)

Question 6: ________ compounds are often filled with calcium carbonate to increase rigidity, a requirement that becomes important at high use temperatures.
PlasticPolyethylene terephthalatePolypropylenePolystyrene

Question 7: It is commonly used medicinally as a calcium supplement or as an ________, but excessive consumption can be hazardous.
AntacidProton-pump inhibitorDiureticLaxative

Question 8: Calcium carbonate is also used in the purification of iron from iron ore in a ________.
SteelSmeltingBlast furnaceWrought iron

Question 9: It is also mixed with putty in setting ________ windows, and as a resist to prevent glass from sticking to kiln shelves when firing glazes and paints at high temperature.
SculptureCeramic artStained glassGlassblowing

Question 10: Calcium carbonate is the active ingredient in agricultural lime, and is usually the principal cause of ________.
IronAluminiumWater purificationHard water

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