List 4 observations that help to determine whether a chemical reactions has taken place

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

Which formula can be used to calculate the molar mass of hydrogen peroxide

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.