The<span> color of the indicator once the equivalence point was reached is going to be changed. </span>
Answer:
sub-particle charge mass
protons +1 1
neutron 0 1
electron - 1 negligible
protons and neutrons are found in the nucleus
electrons in the shells orbiting the nucleus
The mass number of an atom is the sum of its protons and neutrons. the most common isotope of argon is ar-40 (40 ar), with a natural abundance of 99.6 %. the mass number for ar-40 is 40 . It is having 18 protons and 22 neutrons. So its mass number is 40 that is equal to sum of total number of protons and neutrons.
Mass number=total number of protons and neutrons
=18+22
=40
I would say its option number 2 and since its an ''ion'' it would be written as H3O+ :)
You have 6 carbon atoms in glucose. Multiply by 3 and you get 18.