TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: How much is involved in the reaction does the coefficient in front of an element in a formula indicate.

SOLUTION: What does the coefficient in front of an element in a formula indicate?

PROBLEM: Toxins is contained in the skin of brightly colored poison dart frogs.

SOLUTION: What is contained in the skin of brightly colored poison dart frogs?

PROBLEM: A light bulb converts electrical energy to light and thermal energy.

SOLUTION:
A light bulb converts electrical energy to light and what?