Given: Cr(OH)₃(s) $\rightarrow$ CrO₄^2-(aq),Basic Solution

question 230

Multiple Choice

Given: Cr(OH) ₃(s) $\rightarrow$ CrO₄^2-(aq) ,Basic solution.How many electrons appear in the balanced half-reaction?

• A) 3
• B) 6
• C) 5
• D) 7
• E) 4

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Definitions:

Lava Fountain

A volcanic phenomenon in which molten lava is forcefully ejected into the air from a vent or crack in the Earth's surface.

Pyroclastic Flow

A rapid flow of hot gases and volcanic debris that descends along a volcano's slopes when there's a violent eruption.

Lava Dome

A roughly circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano.

Lava Flow

Molten rock that moves over the ground surface during a volcanic eruption.