What is the density of an liquid if its mass is 2,909 g and its volume is 0.57 gallons

Density of liquid = 5103.5 g/mL

Explanation:

Given data:

Density of liquid = ?

Mass of liquid = 2909 g

Volume of liquid = 0.57 gal

Solution:

First of all we will convert the volume into mL.

Volume of liquid = 0.57 gal × 3785 mL/1 gal

Volume of liquid = 2157.68 mL

Now we will calculate the density.

d = 2909 g/0.57 gal

d = 5103.5 g/mL

i'm assuming that the correct answer is indeed the first one/ "a"..

  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-