A gecko relies on van der Waals interactions to stick to various surfaces. Therefore, a gecko would have the greatest difficulty clinging to a ____>

The periodic table displays the following information about the element phosphorus: 15 P 30.794 Based on this information, which of the following are true statements about phosphorus? Select all that apply.

Your roommate has heartburn and you hand her a bottle of antacids. She wants you to explain how the antacids will make her feel better. What do you tell her?

Consider the following reaction at equilibrium: CO2 + H2O 

The periodic table gives the following information about oxygen: 8 O 15.99 A scientific article that you are reading mentions oxygen-18. How is oxygen-18 different from the typical oxygen atom described in the periodic table? Select all that apply.

Assess whether the following chemical reaction represents a weak base, a strong base, a weak acid, or a strong acid. C6H5NH2 + H+  

Which of the functional groups shown can stabilize proteins by forming covalent bonds that cross-link atoms within protein molecules?

Which statements are TRUE about subatomic particles? Select all that apply.

The partial charges in a water molecule _________. Select all that apply.

Choose the pair of terms that correctly completes this sentence about functional groups in organic chemistry: Carboxyl is to _______ as _______ is to base.