Answer:
52.28g
Explanation:
Given:
Mass of CO₂ = 71.89g
Solution:
The equation of the reaction:
CO₂ → C + O₂
We want to determine the mass of O₂ that will form from this reaction.
To do this, find the number of moles of CO₂:
Number of moles of CO₂ = 
Molar mass of CO₂ = 12+ 2(16) = 44g/mol
Number of moles of CO₂ = 
= 1.63mole
From the equation of the reaction:
1mole of CO₂ will produce 1 mole of O₂
So 1.63 mole of CO₂ also produces 1.63mole of O₂
The mass of O₂:
Mass of O₂ = number of moles of O₂ x molar mass of O₂
Molar mass of O₂ = 2 x 16 = 32g/mol
Mass of O₂ = 1.63 x 32 = 52.28g
Toooooooooooooo whatttttt?????
Answer:
It is called Sulfur dichloride
Answer:
The exceptions to the periodic trends in ionization energy are the first ionization energy of beryllium is higher than that of boron and the first ionization energy of nitrogen is also higher than that of oxygen.
Explanation:
Taking a close look at the figure of first ionization energies, it clearly shows that the first ionization energy of beryllium is higher than that of boron and the first ionization energy of nitrogen is also higher than that of oxygen.
This is as a result of Hund's rule and electron configuration. For example, the first ionization potential electron of beryllium is obtained from a 2s orbital while that of boron comes from a 2p electron. However, for oxygen and nitrogen, their electrons are obtained from 2p orbitals. While spin is uniform for all 2p electrons of nitrogen, it is different for oxygen.
the answer to the first one is D and the second one is the first one
