Calculate a pendulums frequency (in Hz) if the pendulum completes 19 cyclesin 0.5 s.

A solution is prepared by dissolving 0.23 mol of benzoic acid and 0.27 mol of sodium benzoate in water sufficient to yield 1.00 L of solution. The addition of 0.05 mol of NaOH to this buffer solution causes the pH to drop slightly.

Which type of soil is the most porus

Which element is used for the shinny trim in thermomerters

Janelle always feels more "tipsy" than her same-size boyfriend after they drink the same amount of alcohol. How would you explain this observation

Why do metals tend to lose electrons to form positive ions? A) They hold on tightly to electrons. B) A metals atom loses its few valence electrons to form a full octet.

Which of the following processes is spontaneous? A). building a house B). launching a satellite into orbit C). drops of dye dispersing in a clear solution D). cleaning your bedroom E). a ball rolling up a hill

What mass of hydrogen is produced from 5.71 mol of aluminum?

Which term represents an intermolecular force in a sample of water? * ?

Which of the following examples are the result of unbalanced forces? Select all the apply

Type one to two paragraphs describing the changes in potential and kinetic energy of the cart.