Answer:
# In a familiar high-school chemistry demonstration, an instructor first uses electricity to split water into its constituent gases, Hydrogen and Oxygen. Then, by combining the two gases and igniting them with a spark, the instructor changes the gases back into water with a loud pop (That means the energy is released in the process).
# There are new other ways to produce water in laboratory, however, the scientists can not produce water in large quantity for the masses, because of some reasons.
1- Theoretically, this is possible, but it would be an extremely dangerous process. Since Hydrogen is extremely flammable and Oxygen supports combustion, it wouldn’t take much to create this force, but we also have an explosion. That’s why this process can be a deadly one if our experiment is big enough.
2- Personally, I think that it makes no sense to produce water in a laboratory ( or in a large plant) for people to use as daily water. The much more important thing we need to do is to save our environment, our planet Earth. Because the daily water people drink contains not just water molecules but other minerals, the marine life is depend not just in water molecules but diferent factors, etc.
Explanation:
This is just my personal opinion. Hope that can help you a little. Have a nice day
The given mass of cobalt chloride hydrate = 2.055 g
A sample of cobalt chloride hydrate was heated to drive off waters of hydration and the anhydrate was weighed.
The mass of anhydrous cobalt chloride = 1.121 g anhydrate.
The mass of water lost during heating = 2.055 g - 1.121 g = 0.934 g
Converting mass of water of hydration present in the hydrate to moles using molar mass:
Mass of water = 0.934 g
Molar mass of water = 18.0 g/mol
Moles of water = 
<span>number of moles= mass / molecular mass
mass=131.50g
molecular mass of Zn(NO3)2 =189.39 g/mol
number of moles = 131.50 g/189.39 g/mol =0.69433 mol</span>
14
Explanation:
The number of neutrons in one atom of silicon with an isotopic mass number of 28amu is 14.
An atom is made up three fundamental sub-atomic particles which are:
Protons, neutron and electrons
Protons are the positively charged particles in an atom
Neutrons do not carry any charges
Electrons are the negatively charged particles.
In the nucleus of an atom, both protons and neutrons can be found. They are the massive particle in an atom.
The mass number of an atom = number of protons + number of neutrons
Number of neutrons = mass number - number of protons.
From the periodic table, we know that silicon has an atomic number of 14.
The atomic number is the number of protons in an atom:
Number of neutrons = 28 - 14 = 14amu
In the atom, we will have 14amu of neutrons in a silicon atom.
learn more:
Number of neutrons brainly.com/question/2757829
#learnwithBrainly
