The male typically deposits a spermatophore on the ground or in the water and the female picks this up. The female salamander then lays its eggs on a stick or rock near water or on land. There are several different species of salamanders with different colorful patterns. Which type of reproduction is taking place?

Acompound is found to contain 6.1% hydrogen and 93.9% oxygen. find it’s empirical formula.

Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.