Which displacement reaction is most likely to occur? Use the resources to help you. A.
BaCl2 + Ca → CaCl2 + Ba
B.
BaCl2 + Sr → SrCl2 + Ba
C.
BaCl2 + 2Na → 2NaCl + Ba
D.
BaCl2 + Mg → MgCl2 +

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.

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit