Determine the Concentration of CO₃^2- Ions in a 0

question 20

Multiple Choice

Determine the concentration of CO₃^2- ions in a 0.18 M H₂CO₃ solution.Carbonic acid is a diprotic acid whose K_a1 = 4.3 × 10^-7 and K_a2 = 5.6 × 10^-11.

• A) 2.8 × 10^-4 M
• B) 3.2 × 10^-6 M
• C) 5.6 × 10^-11 M
• D) 4.3 × 10^-7 M
• E) 6.9 × 10^-8 M

Explain the significance of heritable traits in evolutionary change.

Articulate the key milestones in the evolution and classification of early humans and hominids.

Understand the adaptive traits and behaviors that contributed to the survival and spread of early human species.

Describe the impact of environmental and geographical factors on human evolution.

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