Answer:
Evaporation
Explanation:
with the help of evaporation , the liquid components are separated out from solid components easily .
Answer: Option (d) is the correct answer.
Explanation:
When salt is added to water then the sodium and chlorine ions dissociate.
After the dissociation, both the positive and negative ions that is the sodium and chlorine ions will be surrounded by the water molecules. Thereafter, the positive part of water molecule will be attracted to the negative ions that is the chlorine ions and vice versa.
As sodium ion is a cation so it will hold a positive charge, and chlorine ion is an anion so it will hold a negative charge.
Thus, it can be concluded that when salt is added to water, all of the above will happen except option (d) that is the salt breaks into positive chlorine ions and negative sodium ions.
Answer:
The average atomic mass is 126.1
Explanation:
To obtain the atomic mass of the isotope we use this formula;
(% composition of isotope 1 * mass number) + (% composition of isotope 2 * mass number)
1. Equate the percentage composition with the mass number of each isotope
45/100 * 125 = 56.25
55/100 * 127 = 69.85
2. Add both answers together you get,
56.25 + 69.85 = 126.1.
The average atomic mass is therefore 126.1
The percent by mass of hydrogen in the compound is found by doing: (12.3/210.3) x 100 = 6%
Hope this will help
Answer:
Magnitude of the aftershock = 0.3
Explanation:
Based on the information in the problem, an expression can be written that relates the magnitude of the earthquake (M₁) with the magnitude of the aftershock (M₂):
M₁ = 25M₂
We can then solve for M₂ and substitute in the values in the problem:
M₂ = M₁ / 25 = 6.3 / 25 = 0.3