for the equilibrium: 2 no (g) < > n2(g) + o2 (g), kp=2400. if initially, only no is present at a partial pressure of 37.30 atm, what will the partial pressures of n2 and o2 be at equilibrium? 1827 atm 38.08 atm 1.725 atm 36.55 atm

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

What is the mass of phosphorous in a 51-kg person