cho 2,4 gam este X bay hơi trong một bình kín dung dịch 0,6 lít. Khi este bay hơi hết thì áp suất trong bình ở 136,5 độ C là 425,6 mmHg. Để thủy phân 25,4 gam X cần 0,3 mol NaOH thu được 28,2 gam một muối duy nhất. Xác định CTCT của X, biết rằng X xuất phát từ ancol đơn chức .

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.

If 16.00g of hydrogen gas reacts with 126.73g of oxygen, how many grams of water are yielded? (both reactants are completely consumed in the reaction.)