if you were going to choose on of these chemicals for a hand warmer, which would u choose? justify your answer with evidence

If your fingers are cold or your muscles ache, you can use chemical hand warmers to heat them up. There are two types of chemical hand warmer products, both using exothermic (heat-producing) chemical reactions. Here is how they work.

Key Takeaways: Chemical Hand Warmers

Chemical hand warmers rely on exothermic chemical reactions to release heat.

There are two main types of chemical hand warmers. One type releases heat by air activation. The other type releases heat when a supersaturated solution crystallizes.

Air-activated hand warmers are single use products. Chemical solution hand warmers are re-usable.Explanation:

a polar bond is formed when electrons are shared unevenly between atoms

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