Answer:
see below
Explanation:
When a substance goes from a solid to a gas without going through a liquid stage . Mothballs is an example.
Answer : The atomic mass of chlorine is, 36.723 amu
Explanation :
Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.
Formula used to calculate average atomic mass follows:
As we are given that,
Mass of 35-Cl isotope = 35 amu
Percentage abundance of 35-Cl isotope = 13.85 %
Fractional abundance of 35-Cl isotope = 0.1385
Mass of 37-Cl isotope = 37 amu
Percentage abundance of 37-Cl isotope = 86.15 %
Fractional abundance of 37-Cl isotope = 0.8615
Now put all the given values in above formula, we get:
Therefore, the atomic mass of chlorine is, 36.723 amu
Answer:Strontium (Sr) and Gallium (Ga)
Explanation:
Strontium (Sr) and Gallium (Ga) are the elements which have fewer than four dots in the electron dot diagrams. Explanation: Electron dot diagrams are the diagrams which represent the valence electrons in an element. The electrons are represented by the dots in these diagrams.
Answer:
The answer is diagram D.
When the solutions dissolve in an aqueous solution they dissociate to form ions
That's
AgNO3 → Ag+ NO3-
NaCl → Na+ Cl-
Upon mixing Ag+ pairs with Cl- and Na+ pairs with NO3 -
That's we have
AgCl and NaNO3
I hope this helps you.
Good luck