BOILING WATER 'Quick Quiz'

When water is at a 'rapid boil' a continuous stream of large bubbles rises to the surface.

Which gas or gas mixture forms these bubbles?

a) oxygen (O2)

b) nitrogen (N2)

c) hydrogen (H2)

d) carbon dioxide (CO2)

e) dihydrogen monoxide (H2O)

f) air: nitrogen (N2) + oxygen (O2) mix

g) decomposed water: (H2) + (O2) mix

Helpful hints can be found in a previous post.

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