Gloria is writing the chemical formula for a compound using its chemical name. she has just identified the names of the elements in the compound. what tool will she use next?

Which characteristics can be used to differentiate star systems? check all that apply.

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.