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Atomic mass is the decimal number that is on the periodic table...
Boron's atomic mass is 10.81
K2S (aq) + CoCl2( aq) -----> 2KCl (aq) + CoS (s)
potassium + cobalt potassium chloride + carbonyl sulfide
sulfide chloride
carbonyl sulfide :- it is chemical compound with linear formula (OCS ) normally written as (CoS) .it does not show its structure . its is colorless flammable gas with an unpleasant odour.
Potassium chloride :- It is metal halide salt composed of potassium and chlorine. it is odorless and has white or colorless crystal appearance <span />
Think, does a chemical reaction take place? Do the rocks and/or the water undergo any chemical changes?
Explanation:
d. endothermic change as
heat is added to solid ice to change it to liquid water