Answer:
Nitrogen
Explanation:
The element nitrogen cannot be a product in the given reaction.
The reaction is;
HCl + CaCO₃
According to the law of conservation of matter, "matter is neither created nor destroyed in the cause of a chemical reaction".
The law suggests that, in a chemical reaction, we end up with the same species we started with. Although due to rearrangement of bonds, new compounds can form;
Starting atoms
H
Cl
Ca
O
These species will also be found in the product.
The isotope notation : ⁷³₅₃X
<h3>Further explanation</h3>
Given
53 protons and 20 neutron
Required
The isotope notation
Solution
Isotopes are elements that have the same atomic number with a different mass number
The following element notation,

X = symbol of element
A = mass number
= number of protons + number of neutrons
Z = atomic number
= number of protons = number of electrons, on neutral elements
So the mass number of element = 53 + 20 = 73
Atomic number = 53
The symbol :

Answer: Values of
A = 
B = 
C = 
D = 95pm
E = 1139.9kJ/mol
F = 737.7kJ/mol
G = 495.8kJ/mol
Explanation: We are asked some of the atomic and orbital properties of elements.
Atomic Radii: This is a atomic property of an element which refers to the total distance from the atom's nucleus to the outermost shell. It is usually expressed in
.
Ionic Radii: This is also a atomic property of an element which refers to the distance between the nucleus of the two gaseous atoms touching each other. It is usually expressed in pm.
First Ionization Energy: This is an orbital property which refers to the energy required to remove one mole of loosely held electron from one mole of gaseous ions. It is usually expressed in kJ/mol.
A. represents a situation in which the person is not handling frustration well. In the other situations, the people found they weren't doing as well as they had hoped and so they actively found ways to maneuver around this to improve their lives. Leslie gave up her job simply the move back with her parents with no indication that she would be able to support herself until she got the job she wanted. It's important to keep a source on income while chasing down a dream job.
Hope this helps! :)
Answer: this is a completer guess and i no nothing about this but i thing Sg and Bh because they both have almost the exact same numbers. like i said its a guess sorry if im wrong
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