40.0 is the answer, sorry, I had some lag, I would've answered it like 5 minutes ago
Hope I helped
Answer:
mass of water in hydrate = 2.37 grams
Explanation:
The mass of the hydrated cobalt (III) chloride is the summation of the salt and the water it contains.
This means that:
Total mass of sample = mass of salt + mass of water
Now, we are given that:
total mass of sample = 5.22 grams
mass of salt = mass of sample after heating = 2.85 grams
Substitute to get the mass of water as follows:
5.22 = mass of water in hydrate + 2.85
mass of water in hydrate = 5.22 - 2.85
mass of water in hydrate = 2.37 grams
Hope this helps :)
Answer:
Electrons around the nucleus
The ionization energies (kJ/mol) of hydrogen, nitrogen, sodium, chlorine, and fluorine are 1,312, 1,402, 496, 1,256, and 1,681,
Norma-Jean [14]
Answer: Sodium will most likely to become a monoatomic ion with fluorine when these atoms interact.
Explanation:
Ionization energy is defined as the energy required to remove the most loosely bound electron from a neutral gaseous atom.
With increase in atomic size of the atom, there will be less force of attraction between the nucleus and the valence electrons of the atom. Hence, with lesser amount of energy the valence electrons can be removed.
More is the value of ionization energy more it is difficult to remove an electron. Therefore, lesser is the reactivity of element.
Hence, we can conclude that sodium will most likely to become a monoatomic ion with fluorine when these atoms interact.
These are terms that we use in physics
