Answer:
A cation that has a smaller radius than the atom.
Explanation: when electrons are removed from the outermost shell of a calcium atom, the atom becomes a cation that has a smaller radius than the atom.
3.9 x 10³g
Explanation:
Given parameters;
concentration = 48g/m³
Room dimension = 12 x 12.5 x 18.5ft
unknown:
Mass of carbon dioxide in the room = ?
Solution:
We know that in a room the concentration of carbon monoxide is 48g/m³
To find the mass of the carbon monoxide in a given room, we simply multiply the given concentration level with the volume of the room.
Mass of carbon monoxide = concentration x volume of room
To find the volume of room;
Dimension = 12 x 12.5 x 18.5 in ft to m;
1ft = 0.31m
12ft to meter is 0.31 x 12 = 3.72m
12.5ft to meter is 0.31 x 12.5 = 3.88m
18.5ft to meter is 0.31 x 18.5 = 5.74m
Volume of the room = 3.72 x 3.88 x 5.74 = 82.8m³
Mass of carbon monoxide = concentration x volume of room
Mass of carbon monoxide = 48 x 82.8 = 3.9 x 10³g
learn more:
Density brainly.com/question/2690299
#learnwithBrainly
Answer : The initial concentration of HI and concentration of at equilibrium is, 0.27 M and 0.386 M respectively.
Solution : Given,
Initial concentration of and = 0.11 M
Concentration of and at equilibrium = 0.052 M
Let the initial concentration of HI be, C
The given equilibrium reaction is,
Initially 0.11 0.11 C
At equilibrium (0.11-x) (0.11-x) (C+2x)
As we are given that:
Concentration of and at equilibrium = 0.052 M = (0.11-x)
0.11 - x = 0.052
x = 0.11 - 0.052
x = 0.058 M
The expression of will be,
By solving the terms, we get:
C = 0.27 M
Thus, initial concentration of HI = C = 0.27 M
Thus, the concentration of at equilibrium = (C+2x) = 0.27 + 2(0.058) = 0.386 M
Answer:
a. electrons are transferred from silver in AgCl (aq) to Cd (s)
Explanation:
In this reaction Ag is reduced:
While Cd is oxidized:
With those two semi-reactions we can see that there's a transfer of electrons from silver in AgCl(aq) to the solid cadmium.
For the record, given that Ag was reduced, Cd was the reducing agent. And because Cd was reduced, Ag was the oxidizing agent.