Question

how do find out 12g c-12 contain avogadro's number of particle

Answer 1

heya..!

avagadro no. of particles are present in a mole of substance or atomic weight of a element or molecular weight of substance.

for example 2 gm of helium has avagrdo no. of particles.

18 gm of water has avagadro no. of particles.

similarly C ¹² isotope weighing 12 grams also has avagadro no of particles.

Answer 2

Phloem tissue consists of conducting cells, generally called sieve elements, parenchyma cells, including both specialized companion cells or albuminous cells and unspecialized cells and supportive cells, such as fibres and sclereids.