A diastereomer is called erythro if its Fischer projection shows similar groups . a. opposite each other on the same carbon b. on the same side of the molecule on adjacent carbons c. equally spaced about a central carbonyl d. directly above and below a central carbonyl

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.

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough