[Answered] Calcium sulfate is the name of A. CaSO4. B. Ca2SO4. C. Ca(SN)2. D. Ca ...

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Author Question: Calcium sulfate is the name of A. CaSO4. B. Ca2SO4. C. Ca(SN)2. D. Ca ... (Read 51 times)

dollx

Hero Member
Posts: 558

on: Aug 27, 2018

Calcium sulfate is the name of

A. CaSO4.
B. Ca2SO4.
C. Ca(SN)2.
D. Ca (SO3)2.

Question 2

Why were noble gases absent from Mendeleev's original periodic table of 1871?

A) The noble gases are unstable.
B) The noble gases are radioactive.
C) The noble gases had not been discovered.
D) The noble gases occur only in compounds.
E) none of the above

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Marked as best answer by a Subject Expert

lou

Sr. Member
Posts: 286

Reply #1 on: Aug 27, 2018

Answer to Question 1

A

Answer to Question 2

C

dollx

Member
Posts: 558

Reply 2 on: Aug 27, 2018

Excellent

raili21

Member
Posts: 324

Reply 3 on: Yesterday

Gracias!

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