Explanation

In sp² hybridization, the unhybridized p orbital remains perpendicular to the plane formed by the sp² hybridized orbitals, contributing to the formation of a π bond.

Explanation

The decomposition reaction is: 

ZnCO 3(s)→ZnO(s)+CO 2(g) One mole of ZnCO₃ produces one mole of CO₂, so 10 moles will produce 10 moles of CO₂.

The molar mass of CO₂ is: 

CO₂=12+(16×2)=44g/mol Therefore, 

10 moles of CO₂=10×44=440g.

Explanation

The molar heat of vaporization for water is 40.7 kJ/mol, which is the energy required to vaporize one mole of water.

Explanation

 Pyramidal molecular structure is typically found in molecules like ammonia (NH₃), where there is a central atom with lone pairs and three bonded atoms.

Explanation

The molar mass of calcium carbonate is calculated as: 

Ca=40g/mol,C=12g/mol,O₃=48g/mol 

Total=40+12+48=100g/mol

Explanation

Oxygen in water (H₂O) has 2 bonding and 2 lone pairs, totaling 4 electron pairs.

Explanation

The noble-gas notation [Kr] is for krypton, and Zr (Zirconium) follows krypton in the periodic table with the configuration 5s², 4d².

Explanation

The Zeeman effect refers to splitting spectral lines when atoms are subjected to a magnetic field.

Explanation

Percentage yield is calculated by dividing the actual yield by the theoretical yield and multiplying by 100. 

Percentage Yield =Actual Yield/Theoretical Yield× 100

Explanation

The p sub-shell does not exist in the first energy level (n=1). The first energy level only has an s sub-shell.