10. Which of the following does NOT represent an oxidation - reduction (redox) reaction? a. 3Al(s) + 6HCl(aq) + 3H2(g) + AlCl3(aq) b. Cu(NO3)2(aq) + Zn(s) → Zn(NO3)2(aq) + Cu(s) C. Na2CO3(aq) + 2HCl(aq) → 2NaCl(aq) + H200) + CO2(g) d. 2Nal(aq) + Brz(aq) 2NaBr(aq) + 12(aq)

93.2 ml + 3920 ml = 4013 ml total  

(93.2 ml) * (2.03 m) / (4013 ml) = 0.0471 m

the volume in in l of the diluted solution would be 0.0471 m.

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".