10. Which of the following is a single replacement reaction? a. NaBr + H3PO, Na PO, + HBr
b. Ca(OH)2 + Al(SO )3 Caso, + Al(OH)3
C. Mg + Fe,0Fe + Mgo
d. C, H. + O2 CO2 + H2O
e. PbSO
PbSO, + O2

3 hours because it is a decent distance.

answer: a tank of height h is filled with water and sits on the ground. water squirts from a hole at a height y above the ground and has a range r. for two y values, 0 and h, r is zero. determine the value of y for which the range will be a maximum.

explanation:

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

give me abc and i will get it for u.