Answer & explanation

9. the number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules
in
a.1.8 gram of h2o
b.12 moles of kmno.
c. o.on h, so
d.4.6 gram of c h oh
answer & explanation

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary

i do not get it   at all

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa