Answer:
The properties of elements will repeat periodically when the elements are arranged by their atomic number.
Explanation:
Answer:
0.400 moles
Explanation:
Well, you know that one mole of ammonium chloride,
NH 4 Cl
, dissociates completely in aqueous solution to form one mole of ammonium cations,
NH + 4
, and one mole of chloride anions, Cl
−
.
Answer:
They had a negative charge
Explanation:
Shielding effect being attendency of the inner electrons to repel the outermost electrons, an increase in shielding effect increases atomic radius and decrease reduces the atomic radius
Answer:
44,55 can be produced.
Explanation:
First, we balanced the equation
1Cu + 2AgNO3 → 1Cu(NO3)2 + Ag
Then, we find the moles of each reagent


Now, we find the limiting reagent from the quantities of product that can be formed from each reagent


1,086 moles of AgNO3 is necessary for each mole of Cu since we have 0.413 moles of Ag(NO3), the nitrate is the limiting reagent
the value of the limiting reagent determines the amount of product that is generated
∴ 0,413 mol of Ag can be produced
Ag =
= 44,55g
Ag≈ 44,6g