How many moles are in a .23 M solution of NaCl in a volume of 1.5 liters? 1.5 moles
b
.5 moles
C
1.0 moles
OO
d
.23 moles

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge