Answer:
When an element loses an electron, its oxidation number increases.
Explanation:
The oxidation number of an element indicates the hypothetical charge of an atom in a compound. It is hypothetical because, in the context of a compound, the elements may not necessarily be ionic. When the number of electrons associated with an atom changes, its oxidation number also changes. When an element loses an electron, its oxidation number increases.
Answer: the oxidation of the copper (it turning green)
Explanation:
Answer:
If I'm not mistaken the horizontal rows are periods and the vertical columns are familes.
Explanation:
Solvents allows solvents other substances to dissolve in it and is usually present in greater amount. Hence in a glass of lemonade it is still water. Letter D.
Answer:
Kp of the reaction is 0.0215
Explanation:
Step 1: Data given
Partial pressure at the equilibrium of N2 = 0.22 atm
Partial pressure at the equilibrium of O2 = 0.19 atm
Partial pressure at the equilibrium of NO = 0.030 atm
Temperature = 2200 °C
Step 2: The balanced equation
N2(g) + O2(g) ⇌ 2NO(g)
Step 3: Calculate Kp
Kp = (pNO)² /(pO2)*(pN2)
Kp = (0.030)²/(0.19*0.22)
Kp = 0.0215
Kp of the reaction is 0.0215