The answer is C Nuclear Regulatory Commission
Answer:
Explanation:
Electrons have negative charge and they orbit around the nucleus.
Protons have positive charge and are inside the nucleus
Neutrons have neutral charge they are also inside the nucleus
the nucleus is the middle of the atom
the electron cloud is a cloud which the electrons travel around
Molarity = Moles/Liter
Use the molecular atomic mass of NaCl to convert from grams to moles.
Molecular mass of NaCl is the sum of its atomic masses. Look at the periodic table to find these. Na is 23 g/mol and Cl is 35.5 g/mol ,
so NaCl = 23 + 35.5 = 58.5 g/mol
multiply to cancel out grams
76 g NaCl * (1mol / 58.5 g NaCl) = 1.3 mol NaCl
over 1 Liter is just 1.3 M NaCl
Yes you are correct good job!
I recommend this channel called "Crash Course" on youtube and he has a playlist full of chemistry videos he makes it very fun & very easy to understand. Another option i recommend is researching chemistry on this website called "Khan academy" i did and it helped me alott!!
