Answer:
Ba
Explanation:
The trend for atomic radius is that it increases as you go down and decreases as you go right.
Answer:
Part B : Hg
Part C : Ag
Explanation:
When we added ammonium hydroxide to the solid remains after addition hot water , AgCl dissolve due to the formation of soluble complex [Ag(NH3)2]+ and Hg2Cl2 gives black precipitate with ammonium hydroxide due to formation of elemental mercury.
Black precipitate is not formed upon addition of amonium hydroxide to the precipitate remains after addition of hot water, so Hg22+ is shown not to be present.
The precepite remains after addition of hot water is dissolved by the addition of ammonium hydroxide, so Ag+ may be present. The presence of Ag+ is not confiremed by K2CrO4 test.
<span>(0.058 mol I2)(253.808 g/mol I2) = 14.721 g of I2 </span>
<span>So that's the mass of I2: 14.721 g </span>
<span>Percentage is the mass of solute/(mass of solute + mass of solvent) </span>
<span>14.721/(14.721g + 105 g) </span>
<span>14.721/119.721 </span>
<span>=0.123 or 12.3%
</span>
Answer: the formula of the hydrate is CoCl2.6H2O
Explanation:Please see attachment for explanation
Since this equation is balanced, we know that the law of conversation of mass id applied, and we could calculate easily.
Na= 2
NO3= 2
Ca= 1
<span>Cl= 1</span>
