[xe] 6s2 4f4 is the noble gas configuration for which element

Neodymium

Explanation:

The given element is:

          [Xe] 6s² 4f⁴

To solve this problem, we need to find the number of electrons in the element given;

  Xe  has 54 electrons already

  6s² 4f⁴  where:

                 letters are the orbitals

                 6 and 4 are the energy levels

                superscript are the number of electrons

  So,  2 + 4  = 6

 Total number of electrons  = 54 + 6  = 60

The element is Neodymium

why is cellular respiration important for homeostasis?

it changes food into energy that the organism can use.

which of the following is most likely to happen if a cell is not able to divide?

the cell will not be replaced when it is damaged.

explanation:

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"