What is the basic unit of all matter?
neutron
B
atom
C
electron
D
oroton
Euces

What is the subscript for oxygen in its molecular formula

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.

Will a solution form when the solvent and solute are both nonpolar? a. not likely b. never c. most likely