1. CHENFind the molar mass of each element in the compound. 2. Multiply the mass of the element by its subscript in the compound. 3. Add the molar masses of all of the elements in the compound together. Compound Molar Mass (g/mol) N 20 N20
C. H
12 22
O 11​

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

Describe the interaction that occurs between two objects with the same electrical charge.

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.