List the three physical/structural differences between DNA and RNA.  When stating the differences, please make the difference relative to the other molecule (For example is DNA contains molecule A then what molecule does RNA contain?) 

Denaturing a protein often leads to:

Identify the independent and dependent variables in the following experiment. Bell pepper seedlings are kept a different temperatures.  Plant height is recorded every week.

Zinc’s atomic number is 30 and its atomic mass is 65.  How many neutrons are found in a zinc atom?

Water is a polar molecule.  What property of water causes this polarity?

Match the following terms with the correct definitions. 

Consider the following reaction at equilibrium:  2CO2 (g)  2CO (g) + O2 (g) ΔH° = -514 kJ Le Châtelier’s principle predicts that a decrease in temperature will ________.

The reaction  2NO2 → 2NO + O2 follows second-order kinetics. At 300 °C, drops from 0.0100 M to 0.00650 M in 100.0 s. The rate constant for the reaction is ________ M-1s-1.

The following reaction is second order in and the rate constant is 0.025 M-1s-1:  A → B The concentration of A was 0.65 M at 33 s. The initial concentration of A was ________ M.

A burning splint will burn more vigorously in pure oxygen than in air because ________.