A pipe leaks water at a rate of 1.24 mL/s. What is the rate of the water leak in L/hr? Select one:
a)0.344 L/hr
b)4.46 L/hr
c)0.0744 L/hr
d)20.7 L/hr

b)4.46 L/hr

Explanation:

To solve this question we need to convert the mL to liters (Using the conversion of 1000mL = 1L) and convert the time from seconds to hours (3600s = 1hr)

mL to L:

1.24mL/s * (1L / 1000mL) = 0.00124L/s

seconds to hours:

0.00124L/s * (3600s / 1hr) = 4.46L/hr

Right answer is:

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

2b2t

explanation:

2b2t