300×175
Express your answer using the correct number of significant figures.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as