Which of the following compounds is not an oxide?

2 ⤊

a. CO2
b. SiO2
c. BaSO4
d. H2O

2007-03-05 14:22:39 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

BaSO4 is barium sulfate. To be an oxide, its oxygen atoms cannot be a component of a polyatomic ion (SO4).

2007-03-05 14:31:17 · answer #1 · answered by Anonymous · 0⤊ 0⤋

C - SO4 is a polyatomic ion - sulfate

2007-03-05 22:31:22 · answer #2 · answered by Melissa 1 · 0⤊ 0⤋

BaSO4 is a sulfate

2007-03-05 22:25:36 · answer #3 · answered by science teacher 7 · 1⤊ 0⤋

C.It's a sulfate.

2007-03-05 22:25:09 · answer #4 · answered by bestguessing 3 · 1⤊ 0⤋