Select the TRUE statement concerning rate of reactions.

Argon gas is cooled from 120. ºC to 52 ºC. The original volume of argon at 120. ºC was 122 L. What is the final volume in liters, assuming P and n are constant? Show the calculation.

What is the name of the following molecule?            

A blood sample has a pH of 7.42. What is the concentration of hydronium ion in the sample?

Which choice correctly numbers pinolenic acid (shown below) using the omega system?  

What is the IUPAC name of this hydrocarbon?  

What is the ratio of ions in Li2O?

If the DNA sequence 5′-CCTATCGA-3′ was the template for transcription into mRNA, the sequence of the resulting RNA would be

Which of the following reactions is NOT balanced? Fe2O3 + 2 Al → 2 Fe + Al2O3 C6H12O6 + 6 O2 → 6 CO2 + 6 H2O CaO + 3 C → CaC2 + CO C2H6O + O2 → 2 CO2 + 3 H2O

What volume does 4.1 mol of helium occupy at STP? Show the calculation.