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Why is it important to note color changes of the precipitate or supernatant in a qualitative analysis?

I can’t see a precipitate in my test tube even after centrifuging, why should I continue the test to see if a specific cation is present?

Lipids are __________________meaning______________________

Suppose a scientist wanted to determine if a substance retrieved from outer space is alive. Which of these properties of the substance would NOT help her make that determination?

Why does the color change going from the yellow for FeC2O4 to a green color for K3[Fe(C2O4)3]●3H2O?

Sea stars contains a __________, which they evert outside their body to begin digesting food externally.

If the production of products is favored for a given reaction, what do we know about the equilibrium constant, K?

Extremophilic bacteria are able to survive in hostile environments, including scalding hot water found in springs and vents that reach temperatures over 100°C. Researchers studying these bacteria measured the function of a protein from an extremophile bacterium at 100°C, and they also measured the function of a similar protein from a human cell at 100°C. Which results do you think the researchers obtained?

Triglycerides function to:

A peptide bond is formed between: