Convey the following information in the form of balanced chemical equations:
d) Solid potassium nitrate decomposes into solid potassium nitrite and oxygen.
e) Aqueous solution of sodium hydroxide reacts with sulphuric acid to form sodium sulphate solution and water.
f) Aqueous solution of calcium nitrate reacts with aqueous solution of ammonium carbonate to form white precipitate of calcium carbonate and ammonium nitrate solution.

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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b. th3 n4zc4 pl4t3 15 c0nv3rg1ng w1th the s0uth 4m3ric4n pl4t3.

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml