What can be used to determine the relative age of two rocks?

A. vertical position

B. the presence of unconformities

C. radioactive dating of each layer

D. The relative age cannot be determined.

Which of the following would most likely cause a building to erode? A. acid rain B. the heat island effect C. heat pollution D. vehicle emissions

An ideal gas with MW = 30 is flowing at a steady rate through a circular pipe (cross-section area of 57.8 cm^2) at a temperature of 1.60 * 10^2 °C and pressure of 49.3 psig.

9.98 kg of R-134a at 300 kPa fills a rigid container whose volume is 14 L. Determine the temperature and total enthalpy in the container. The container is now heated until the pressure is 600 kPa.

What property of motion is described by Newton's First Law of Motion?

Where do the materials that we use to make plastic bags, crayons and polyester (for clothes) come from?

In a laboratory, Carlos places one plate with grape jelly and another plate with cooked brown rice inside an ant farm. The next day, he finds that both plates are filled with ants.

Which statement is true at STP? (The atomic mass of Zn is 65.39 u.)

A sample of gas has a volume of 2.4 L and a pressure of 1.2 atm. What would the pressure of the same gas sample be if the volume is reduced to 1.8L at a constant temperature?

The elements most likely to form more than type of ion are the ... A. Transition metals B. alkali metals C. halogens D. alkaline earth metals

Mole-Mass Conversions How many moles in 28. o grams of Oxygen? What is the mass of 5.0 moles of Iron? Find the number of moles of argon in 452 g of argon. Find the grams in 16.5 mol of Hydrogen.