An atom has 25 protons, 30 neutrons, and 25 electrons. What is the charge of the atom's nucleus?
F +25
G +30
H -25
J -30

V1t2 = v2t1 is an expression of who’s law

Arecipe calls for 1.2 cups of oil. how many liters of oil is this?

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it