Each atom has three atomic particles, which are electron, neutron and proton. The number of proton an atom has determines its atomic number. For an atom to be neutral, the number of proton and electron must be equal.
Mass number is defined as the summation of proton and neutron in an atom.
For the question given above, the number of proton is 45, because the atomic number is 45 and the number of electron too is 45.
To find the number of neutron; Mass number = proton + neutron
Neutron number = Mass number - proton number
Neutron number = 156 - 45 = 111.
Therefore the number of neutron in element X is 111.
Answer: a.) Methyl would be the answer.
Explanation:
<u>Answer:</u> The equilibrium reaction of trimethylamine with water is written below.
<u>Explanation:</u>
According to the Bronsted-Lowry conjugate acid-base theory:
- An acid is defined as a substance which looses or donates protons and thus forming conjugate base.
- A base is defined as a substance which accepts protons and thus forming conjugate acid.
The equilibrium reaction for the reaction of trimethylamine acting as a weak base in water follows:
Hence, the equilibrium reaction of trimethylamine with water is written above.
t doesn't represent the concentration of AgCl dissolved in water because we assume that AgCl dissociates into Ag+ ions and Cl- ions when it dissolves in water. It can't represent the amount of solid AgCl in the system because the equilibrium is not affected by the amount of excess solid added to the system.
A "FORCE" is required to cause acceleration or cause an object to move.
