Choose the INCORRECT statement.
A) Gypsum is CaSO4 ∙ 2H2O.
B) Plaster of Paris is calcium sulfate hexahydrate.
C) Quicklime is calcium oxide.
D) Slaked lime is calcium hydroxide.
E) Mortar used in bricklaying is made of slaked lime,sand,and water.
Correct Answer:
Verified
Q31: Choose the INCORRECT statement.
A)The class "detergents" does
Q32: Choose the INCORRECT statement.
A)The production of limestone
Q33: Choose the INCORRECT statement.
A)Potassium chloride is used
Q34: Choose the INCORRECT statement about magnesium.
A)Magnesium is
Q35: Choose the INCORRECT statement about Na2CO3.
A)A by-product
Q37: Choose the INCORRECT statement.
A)Sodium bicarbonate is sodium
Q38: The Solvay process involves a reaction of
Q39: Finish the following reaction:
Li(s)+ N2(g)→
A)3 Li(s)+ N2(g)→
Q40: Finish the following reaction:
Li(s)+ O2(g)→
A)2 Li(s)+ O2(g)→
Q41: In the stepwise preparation of pure calcium
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