Which is a key element found in all carbohydrates, lipids, proteins, and nucleic acids?

a. ammonia

b. carbon

c. nitrogen

d. legumes

Consider the reaction where A reacts with B to give C and D according to the rate equation: rate = k[A][B] If the concentration of both reagents is doubled, what happens to the rate of the reaction?

What is the molarity of a 10.5 %% by mass glucose (C6H12O6C6H12O6) solution? (The density of the solution is 1.03 g/mLg/mL.) Express your answer to three significant figures.

The structure of melatonin incorporates two nitrogen atoms. What are the hybridization state and geometry of each nitrogen atom? Explain your answer.

The offspring of a paramecium usually contain

Ifa dozen nails weighs 1 pound, how many nails are in 7.6 pounds?

You are on an alien planet where the names for substances and the units of measures are very unfamiliar. Nonetheless, you obtain 19 quibs of substance called skvarnick.

How do you know if an element is an ion?

Which gas is not a greenhouse gas, A methane, B Water Vapor, C, Carbon dioxide, D, Nitrogen, E, Ozone

A very small equilibrium constant means ... a. an equal amount of reactants and products c. more products b. more reactants d. system isn't at equilibrium

What is in a banana? give me specifics?!