Which of the Following Is True Concerning the Chemical Properties

question 19

Multiple Choice

Which of the following is true concerning the chemical properties of gypsum materials?

• A) Chemically,the mineral gypsum is a hemihydrate of calcium carbonate.
• B) To form the raw material into a powder,the manufacturer heats it and adds water.
• C) When the dihydrate is again mixed with water,a product with a viscosity capable of flowing is produced.
• D) The amount of water required to mix the calcium sulfate hemihydrate is greater than the amount required for the chemical reaction.

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Definitions:

Sepal

One of the outermost parts of a flower, usually leaflike in appearance, that protects the flower as a bud.

Flower Bud

A flower bud is a small embryonic flower, encased in protective scales, which develops into a mature flower upon growth and favorable conditions.

Protect

To cover or shield from exposure, injury, damage, or destruction.

Parallel Veins

A vein pattern in plant leaves where the veins run parallel to each other from the base to the tip, common in monocots.