How are atomic emission spectra used to identify elements?
a) as the atom emits photons at precise frequencies it creates a similar atomic emission spectra to other atoms within its group.
b) atoms absorb photons and emit energy at definitive frequencies creating a universal atomic emission spectra common to all atoms. c) when the atom absorbs photons, energy can only be emitted at specific frequencies creating a characteristic atomic emission spectra.
d) the atom absorbs photons and emits a continuous spectrum of energy but only certain frequencies can be detected creating the spectra.

is it a purebred? it looks more like a red nose, but it doesn't have the red could it be a staffordshire bull terrior? unsure if that's the right name for it sorry

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

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >

i belive it is water