Which of these is a chemical change a/ fire works eploding b/grinding powder c/iorning shirt

Stage in which a typical star has completely stopped fusion

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 factor is likely to impact the possible number of compounds ?