Bromine is a reddish-brown liquid. calculate its density (in g/ml) if 586 g of the substance occupies 188 ml.

The density of bromine will be 3.12 g/ml.

Explanation:

Density is defined as the mass contained per unit volume.

Given : Mass of bromine = 586 grams

Volume of bromine = 188 ml

Putting in the values we get:

Thus density of bromine will be 3.12 g/ml

  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-

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