What could jj thomson conclude from his experiments? a. atoms are empty spaceb. most of the mass of the atom is concentrated in the center c. atoms must balance positive and negative particlesd. atoms are indivisible

What is the mass of 8 moles of sodium atoms

Some molecular compounds, such as hcl, ionize completely in solution. for molecular compounds such as h2co3, most molecules do not ionize in solution. which describes the properties of these two solutes? a. hcl and h2co3 have the same effect on the properties of the solution. b. hcl raises the freezing point of water more than h2co3 does. c. hcl raises the boiling point of water more than h2co3 does.

What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients