Answer:
The answer is B. H2SO4/Na2SO4
Explanation:
Answer: Mass of one mole of viruses in grams is 
Explanation:
According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number 
of particles.
Given : One virus has mass of = 
One mole of virus has mass of = 
Thus mass of one mole of viruses in grams is
Answer:
1. most of the space inside an atom is vacant.
2. there is a tiny dense nucleus on the centre of atom.
Explanation:
since most of the alpha particle ere unscattered on passing through the gold foil he said that most part of atom is vacant. also as some alpha particle got strongly deflected on passing through the center he also made conclusion that the nucleus is small and positively charged and at the center of atom.
