Answer: A
Explanation: learned response - a reaction that has been acquired by learning. (a bodily process occurring due to the effect of some antecedent stimulus or agent)
Percent yield =(Experimental)/(Theoretical) x 100 = 2.55 g/ 2.78 g x 100 = 91.7%
Given:
Atomic number of an atom = 14
Partial electron configuration = 1s²2s²2p⁶3s²X
To determine:
The identity of X
Explanation:
Based on the Aufbau rule, the order in which the orbitals fill up based on energetic considerations is:
1s 2s 2p 3s 3p 4s 3d 4p ....
maximum # electrons in s orbital = 2, p = 6, d = 10 and so on
Since 3p would follow the 3s orbital, in this case we will have the full configuration as:
1s²2s²2p⁶3s²3p²
Ans c) X = 3p²
Answer: B
Explanation:
There is an atom of one type of element and then two atoms of another type of element.
Answer: The density of tellerium tribromide is 14.8 g/L
Explanation:
The relation between density and Molar mass:
P = pressure of gas = 743.5 torr = 0.98 atm (760torr=1atm)
M = Molar mass = 367 g/mol
R = gas constant =
T = temperature =
The density of tellerium tribromide is 14.8 g/L