How many sodium atoms (Na) are in 3.00 moles of Na3PO4? O 6.02 x 1023
O 1.81 x 1024
O 3.61 x 1024
O 5.42 x 1024

Which of the following units is not an official si unit? mole liter kilogram ampere

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.