Answer:
Hydrogen.
Explanation:
The flammable gas it produces is hydrogen.
Diborane gas B2H6 and boric acid are also produced.
This is a biology question not a chemistry question. But these are all types of cells related to different cell division techniques. does that help?
Molar mass arsenic = 74.92 g/mol
1 mole ---------- 74.92 g
? mole ----------- 1.90 g
moles = 1.90 * 1 / 74.92
= 0.02536 moles of arsenic
hope this helps!