Why Is There an Energetic Barrier to Rotation of the C=C

question 21

Multiple Choice

Why is there an energetic barrier to rotation of the C=C bond in ethene?

• A) The trans isomer is more stable than the cis isomer.
• B) Rotation breaks the s C-C bond.
• C) Rotation breaks the p C-C bond.
• D) Steric repulsion between the hydrogen atoms.
• E) There is no energy barrier to rotation of this bond.

Calculate the total in real-world scenarios involving percentages.

Calculate percentage increase or decrease in real-world contexts.

Understand and apply percentage calculations to solve problems about salary and work hours.

Understand the structural components and distinguishing features of major biological molecules such as nucleic acids.

---

Definitions:

Urinary Tract Infections

Infections that occur in any part of the urinary system, including the bladder, kidneys, ureters, and urethra, often caused by bacteria.

Void

In medical terminology, to empty or evacuate waste material, especially urine, from the body.

Perineum Area

The region of the body between the pubic symphysis and the coccyx, including the genital and anal areas.

Prostate Gland

A male reproductive organ located below the bladder that produces fluids included in semen.