Answer:
it has made the study of chemistry systematic and easy. it acts as an aid to memory
Molar mass of NaOH = 39.997 g/mol
39.997 g ---------- 6.02x10²³ molecules
g --------------- 2.30x10²² molecules
mass = 2.30x 10²² * 39.997 / 6.02x10²³
mass = 9x199^24 / 6.02x10²³
mass = 15.280 g
hope this helps!
The moon surface is
visible to an observer on earth due to the gravitational force that attracts the
moon to the earth. The more massive the body is, the more the smaller body is
attracted to the larger body. We can only see the side of the moon due to the
speed at which the moon rotates.
Answer:
its atomic number is 92 and its atomic mass is 238(92+146).
Explanation:
For example,Silicon has 14 protons and 14 neutrons.its atomic number is 14 and its atomic mass is 28
