Which element has the greatest density at stp? a)calcium. b)carbon c) silicon d)sodium

Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?

What is the name of the enzyme that forms at the start of transcription?