5. When this synthetic sequence is performed starting with 2-butene rather than stilbene, another product other than 2-butyne is the major product. What is this product and why does it form preferentially to 2-butyne

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

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 metals are called noble metals