nguyên tử khối trung bình của Bo là 10,81. Bo gồm 2 đồng vị 10B và 11B. Hỏi có bao nhiêu nguyên tử của đồng vị 11B có trong 12,362 gam axit boric H3BO3 ? Biết nguyên tử khối trung bình của H là 1, của O là 16

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?

Which type of intermolecular force is pbr3