How many hydrogen atoms are in 4.80 mol of ammonium sulfide?

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.

Which scientists contributed to the determination of how cfcs in clouds in the upper atmosphere could destroy ozone molecules