Thomson was the first scientist to experimentally question
a. the existence of positive and negative particles within the atom.
b. the existence of a nucleus within the atom.
c. the existence of the atom.
d. the existence of neutrons.

Which characteristics can be used to differentiate star systems? check all that apply.

Which of the following is true about a carbonated soft drink? . the carbon dioxide is the solvent, and water is the solute.. the water is the solution, and carbon dioxide is the solvent.. the carbon dioxide is the solution, and the water is the solvent.. the water is the solvent, and the carbon dioxide is the solute.. .

In which region is the substance in both the solid phase and the liquid phase? 1 2. 3 4 mark this and return save and exit next