2. Give a "water-wise" alternative to each activity below.

(a) hosing off a driveway to
clean it

(b) watering outdoor plants with a hose

(c) letting the tap run to get cold water

i’m feeling good today you’ll get 30 points for the questions

1. sweep it instead

2.use a wateringcan with a percise nossole to water your plants efectivly 3.keep a jug of water in your frisge

Explanation:

  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-