Mass number is the sum of protons and neutrons.
Atomic number is the total number of protons present.
Mass number = protons + neutrons
Atomic number = protons present.
From the above equations we can conclude that,
Atomic number= Mass number- neutrons.
Thus we can find out the atomic number by subtracting the number of neutrons from the mass number.
2Al + 3ZnCl₂ ----> 3Zn + 2AlCl₃
What is the coefficient in front of AlCl₃? ==>> 2
The answer Is (1)...Straight Isomer when you put them together.
Hope that helps!!!
Answer:
D
Explanation:
i took the test and got it right :)
Answer:
0.22
Explanation:
Given, Mass of
= 46.85 g
Molar mass of
= 299.4 g/mol
The formula for the calculation of moles is shown below:
Thus,
Given, Mass of
= 125.5 g
Molar mass of
= 46.07 g/mol
The formula for the calculation of moles is shown below:
Thus,
So, according to definition of mole fraction:
