What is the carbon skeleton formed in the following reaction? C2H6 + HBR

C-C-BR= C
C3/4 C3/4 BR 3/4 C
C-C=C-BR
C3/4C3/4C3/4BR

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe