Answer:
The balance equation of Ca(OH)2 + HCl ---> CaCl2 + H2O
is
Ca(OH)2(s) + <u>2</u>HCl(aq) ---> CaCl2(aq) +<u>2</u>H2O (l) (balanced equation)
When the salt AgI dissolves in water it dissociates as follows;
AgI ---> Ag⁺ + I⁻
molar solubility is the number of moles that are dissolved in 1 L of solution.
If molar solubility of AgI is x, then molar solubility of Ag⁺ is x and I⁻ is x.
the formula for solubility product constant - ksp of AgI is given below
ksp = [Ag⁺][I⁻]
ksp = (x)(x)
ksp = 8.51 x 10⁻¹⁷
therefore,
x² = 8.51 x 10⁻¹⁷
x = 9.22 x 10⁻⁹
since molar solubility of AgI is x, then molar solubility of AgI is 9.22 x 10⁻⁹ M
Answer:
Antimony - metalloid
Tungsten- Transition metal
Argon - Noble gas
Iron - Transition metal
Bromine- Halogen
Cesium- Alkali metal
Cerium- lanthanide
Uranium - Actinide
Calcium- Alkaline earth metal
Lithium - Alkaline metal
Explanation:
Lithium is an alkaline metal because it belongs to group 1 of the periodic table. This is the general name for the group.
Calcium is an alkaline earth metal as it belongs to group 2 of the periodic table. This is the general name of the group.
Uranium is an actinide as it belongs to the second series of the f block
Cerium is the second element in the lanthanide series after lanthanum
Cesium belongs to group 1 and hence is an alkaline metal.
Bromine is a halogen as it belongs to group 7 of the periodic table
Iron is a transition metal as it belongs to the first series of transition metals
Argon is s noble gas as it belongs to group 18
Tungsten is s transition element and it belongs to the third series
Antimony is a metalloid
1 mole of CaCl2 consists of 1 mole Ca2+ and 2 mole Cl–. If 1 mole of Cl– is 6.02 x 1023 Cl– ions, then 1 mole of CaCl2 contains (2 x 6.02 x 1023) Cl– ions or 1.20 x 1024 Cl– ions.
HOPE THIS HELPS!!!!!
