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3 votes
Which element can form acidic compounds? Check all that apply.

Sulfur
rubidium
arsenic
selenium
silicon
zenon
antimony

Its not just silicon and arsenic

2 Answers

5 votes

sulfur

arsenic

selenium

silicon

antimony

User Jordin
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2 votes

Answer is: sulfur, arsenic, selenium, silicon and antimony.

1) Sulfur (S) can form, for example, sulfuric acid (H₂SO₄) or acidic oxide, sulfur(VI) oxide (SO₃).

2) Arsenic (As) can form arsenous acid (H₃AsO₃).

3) Selenium (Se) can form selenic acid (H₂SeO₄).

4) Silicon (Si) can form orthosilicic acid Si(OH)₄ and metasilicic acid SiO(OH)₂.

5) Antimony (Sb) can form antimonic acid, as the hydrate HSb(OH)₆.

User Droidgren
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8.9k points