When the subscript is present it is implies to which element

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

When a septic tank backs up a goes in to clean it out

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.