In the synthesis of protein what is the function of messnager-rna molecules

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g