An atom of sodium (na has 11 protons. what is its approximate atomic mass?

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule