Answer:
The answer is a compound.
it is a compound as it contains different elements
Explanation:
234212444. Bccvvgggvvddfcvvvvhhhhggghhhhh 135433
1 mol of any substance is made of 6.022 x 10²³ units.
When its 1 mol of a formula, its made of 6.022 x 10²³ formula units
Therefore if 6.022 x 10²³ formula units of CeI₃ make up 1 mol of CeI₃
Then 9.42 x 10²¹ formula units make up - 1/(6.022 x 10²³) x (9.42 x 10²¹) = 0.0156 mol of CeI₃
Therefore number of moles of CeI₃ - 0.0156 mol
95.21 grams.
Add the atomic mass of each element present. (If there is more than one atom of an element, multiply the element's atomic mass by the number of that element's atoms.)
Answer:
Carbon contain 4 electrons in its valence shell.
Explanation:
Because, total no. of electrons in carbon are 6, so in first shell there are 2 electrons and hence 4 in valence shell.