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

A sample of 0.020 mole of oxygen gas is confined at 227°C and 0.50 atmospheres. What would be the pressure of this sample at 27°C and the same volume?

Which planet has an atmosphere composed mainly of nitrogen (78 percent) and oxygen (21 percent) ?

Whats the definition of organic chemistry

Why do convection currents form

Using Bowen's Reaction Series, if basalt, granite, and diorite were heated at the same time and rate, which would be the last to completely melt? Which would be the first? How do you know?

A student has 2.99 g of Potassium Permaganate. How many mL of a. 532 M solution can the student make? How does one solve this?

Which statement is true according to the kinetic theory? 1. Moles of different gases with the same mas and temperature always have the same average density. 2.

A substance with a pH of 9 has A) no H30 + ions or OH - ions. B) more H30 + ions than OH - ions. C) more OH - ions than H30 + ions. D) the same number of H30 + ions as it does OH - ions.

Consider the following quantities used in thermodynamics: E, H, q, w, S, G. How many of them are state functions? a. 2 b. 0 c. 3 d. 1 e. 4

What are some good problem statements