Balance these equations
n2 + o2 > no

N2 + O2 --->  2NO

Explanation:

There has to be the same amount of elements on both sides of the equation and it's the rules of chemistry that you cannot add subscripts to the elements because that just changes the whole compound so you must always add coefficients. (The 2 distributes to both elements)

answer; /// i do believe that the correct answer is (c)nuclear bond

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