3. Created, destroyed, form Is the correct answer
2C₂H₂ + 5O₂ = 4CO₂ + 2H₂O
m(CO₂)/{4M(CO₂)} = m(C₂H₂)/{2M(C₂H₂)}
m(CO₂)=2M(CO₂)m(C₂H₂)/M(C₂H₂)
m(CO₂)=2*44g/mol*38.9g/26g/mol = 131.7 g
131.7 grams of carbon dioxide would be formed
In an unsaturated solution, the amount of solute is less than required in the solution. So, it can dissolve more solute.
Solid state is more dense than the liquid state as the molecules are closely packed in a solid.
Density is temperature dependent as with increase in temperature volume increases. So, the density decreases.
Like dissolves like. A polar solute will dissolve in a polar solvent.
So, the correct statement among the given options is B.For most substances, the solid state is more dense than the liquid state.
