<span>A transformation that is invariant with respect to distance. That is, the distance between any two points in the pre-image must be the same as the distance between the images of the two points.</span>
B. Copper since the rest of the choices are compounds. Copper is an element.
Answer:
Explanation:
Atomic radius is the measurement from the nucleus to the outer edge of the electron cloud.
As you go down a group (vertically) the atomic radius increases because more electron shells are added. As you go across a period horizontally, the atomic radius decreases.
If we look at the halogens group (17), we see they follow this order from top to bottom:
F - Fluorine
Cl - Chlorine
Br - Bromine
I - Iodine
Since it increases down the group, iodine must have the largest atomic radius.
For this problem, we will use the formula setup for Molarity.
The formula is M= moles
---------
liters
So, lets plug in the numbers we have. We know M= 0.954, and L (liters)= 3.63. Lets plug that into our equation.
x
0.954= -----
3.63
As we can see, our moles are unknown.
So, lets multiply 0.954 times 3.63 to get our moles.
0.954 x 3.63 equals 3.46302.
We know this is our correct answer, because when we divide 3.46302 and 3.63, we get 0.954.
Why?
Because when we divide the moles by liters, we get the molarity.
I hope I helped!!!!!
Here are some common units to know if my units confused you.
M= Molarity, which is what we find by dividing moles by liters
mol= Moles
L= Liters
