Which best describes how an ionic bond forms? A. Two molecules share an electron. B. One atom pulls an electron from another atom. C. Two atoms share valence electrons. D. Two atoms both lose an electron.

Which statement describes why radiocarbon dating has an upward limit of 50 000 years

Match the humidities with their description. 1. Reading with the most water in the air. 2. Reading with 80% water in the air. 3. Reading that shows the air could hold 80% more water. 4. Reading with the lowest amount of water in the air. a.

A reaction XY occurs in a closed vessel. when it reaches equilibrium at temperature T, the number of molecules changing from X to Y is equal to the number of molecules changing from Y to X true or false.

Which of the following is a part of the geocentric model? a. All objects in the universe are perfect spheres. b. All objects in the universe move around the sun. c. All objects in the universe revolve around Earth. d.

Consider separate 1.0-L samples of He (g) and UF6 (g), both at 1.00 atm and containing the same number of moles. What ratio of temperatures for the two samples would produce the same root mean square velocity? Consider separate 1.

Polarity of a molecule depends on the polarity of individual bonds in that molecule. a. True b. False

What causes dipole interactions

What do holes in volcanic rock illustrate about the conditions in which

Susan dropped a nail into a graduated cylinder filled with water. She then recorded the number of millimeters the water rose in the cylinder. Which property of the nail can be determined by the change in height of the water?

Por que un solido mantiene su forma?