What is the energy of a photon of infrared radiation with a frequency of 2.53 * 1012 Hz? Planck's constant is

6.63 * 10-34 J • s.

A. 1.68 * 1023 J B. 1.68 * 1047 J C. 1.68 * 10-21 J D. 1.68 * 10-45 J

Convergent boundaries are zones on what plates

Give the number of significant figure in this number 2.115

Which of the following best describes a possible carbon compound?

During which process would the ratio of uranium 238 to lead 206 be used?

How would technology affect the population growth rate? A. It would create a steady population increase with high birthrates and death rates. B. It would lead to rapid population increase with high birthrates and lower death rates. C.

A series circuit has two 5.0-ohm resistors and a power source of 9.0 volts. How will the current be affected and what will it be if another resistor (with a resistance of 7.5 ohms) is added to the circuit? A. increase; 0.51 amps B. increase; 0.

Which type of reaction will occur when equal volumes of 0.1 M HCl and 0.1 M NaOH are mixed 1. Neutralization 2. Ionization 3. Electrolysis 4. Hydrolysis

What is molarity of heavy water?

Do all liquids freeze at the same rate

Convert 1.67 x10^24 atoms of carbon to moles of carbon