To explore the consequences of coupling of atp hydrolysis under physiological conditions to a thermodynamically unfavorable biochemical reaction, consider the hypothetical transformation x-> y, for which g°’=20.0 kj/mol and 25°c. a. what is the ratio [y]/[x] at quilibrium? b. suppose x and y participate in a sequence of reactions during which atp is hydrolyzed to adp and pi. what is the overall reaction? x+atp+h2o→y+adp+pic. what is the new [y]/[x] ratio at 25°c assuming that atp, adp, and pi are all 1 m.

Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases

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.)

The biosphere of the earth is made up of what compound? organic or inorganic?