Answer:
The answer is Chemical nomenclature
Explanation:
"IUPAC is best known for its works standardizing nomenclature in chemistry"
Answer:
The salt will be located in period 6 of the periodic table.
Explanation:
Short answer: 27-13=14 neutrons. Long answer: This is because the atomic number tells you the number of protons and the atomic mass is telling you the overall mass of the atom. The atomic number is important because it distinguishes specific atoms and their locations on the periodic table. Protons have a +1 charge and electrons have a negative charge. On the periodic table, all atoms are neutral this means 0 net charge per atom. That also means protons must equal electrons in a 1:1 ratio because electrons provide a -1 charge. Roughly speaking, protons and neutrons way around 1 amu where electrons weigh a lot less. Why is all this important? It’s important because this should give you an idea as to why you can get the number of neutrons by subtracting the atomic mass by the atomic number.
Answer:
Law of conservation of energy states that energy can neither be created nor can be destroyed but can be changed from one form to another
example:I am quite confused Sorry....❤plz follow me
Answer:
option d= -440 kj
Explanation:
chemical equation:
CH4 + 4Cl2 → CCl4 + 4HCl
Given data:
Bond broken energies:
C-H = 413 Kj/mol
Cl-Cl =243 Kj/mol
Bond formation energies:
C-Cl = 339 Kj/mol
H-Cl = 427 Kj/mol
Formula:
δh° = ∑n (bonds broken) - ∑m (bonds formation)
Solution:
Total bonds broken energy:
C-H = 413 Kj/mol 4×413 Kj/mol = 1652 Kj/mol
Cl-Cl = 243 Kj/mol 4×243 Kj/mol = 272Kj/mol
total = 2624 Kj/mol
Total bond formation energy:
C-Cl = 339 Kj/mol 4×339 Kj/mol = 1356 Kj/mol
H-Cl = 427 Kj/mol 4×427 Kj/mol = 1708 Kj/mol
total = 3064 Kj/mol
Now we will put the values in formula to calculate the δh° for reaction.
δh° = ∑n (bonds broken) - ∑m (bonds formation)
δh° = (2624) - (3064)
δh° = -440 kj