What is the molarity of a solution of kno3 that contains 404 grams of kno3 in 2 liters of solution

Iwll give extra points to who gets this for ! what type of reaction is this? ?

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

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion