The answer is 4.) salt and water. are you learning acids and bases too?:D
Answer:
When 0.356 moles of PbS completely react 0.356 moles of PbO and 0.356 moles of SO₂ are produced.
Explanation:
2PbS (s) + 3O₂ (g) → 2PbO (s) + 2SO₂ (g)
2 mol PbS ____________ 2 mol PbO
0.356 mol PbS ________ x
x = 0.356 mol PbO
2 mol PbS ____________ 2 mol SO₂
0.356 mol PbS ________ x
x = 0.356 mol SO₂
I think E sorry if I’m wrong
Answer:
Explanation:
Resonance structure occurs in an organic compound that undergoes resonance effects. This resonance effect is sometimes called the mesomeric effect helps to increases the stability of organic compounds that have alternating single bonds and double bonds.
The second resonance structure diagram for the ion given in the question can be found in the attached diagram below.
Answer:
The periodic table is organized into groups (columns) and periods (rows).
Explanation:
The periodic table is organized into groups (columns) and periods (rows). The first ones contain those elements that have the same valence and have similar characteristics to each other. Example: group IA have valence 1 (they require 1 electron to reach the octet). The exception to this are the noble gases located in the last group to the right of the table, which have already filled their last energy level.
Periods have elements that have the same number of orbitals and have different properties; although the masses are similar.