What are the bond angles around a central atom with sp hybridized orbitals?

A sample of chlorine gas is confined in a 5.0 L container at 0.433 atm and 37oC. How many moles of gas are in the sample?

How much energy is evolved during the formation of 102 g of Fe, according to the reaction below? Fe2O3(s) + 2 Al(s) → Al2O3(s) + 2 Fe(s)         ΔH°rxn = -824 kJ

Determine whether the following reaction is a redox reaction. If it is, identify the element that is oxidized, the element that is reduced, the oxidizing agent, and the reducing agent. 3Ca(s) + 2N2(g) → Ca3N2(s)

What are the bond angles around a central atom with sp2 hybridized orbitals?

Determine whether the following reaction is a redox reaction. If it is, identify the element that is oxidized, the element that is reduced, the oxidizing agent, and the reducing agent. C8H18(g) + 25O2(g) → 16CO2(g) + 18H2O(l)

Use the following enthalpies of formations (∆Hof): C6H6(l) H2O(g) CO2(g) ∆Hof 49 kJ/mol -242 kJ/mol -394 kJ/mol to calculate the standard enthalpy of reaction (∆Horxn) for the following reaction: 2C6H6(l) + 15O2(g) → 12CO2(g) + 6H2O(g) ∆Horxn = ?

How many double bonds are present in the Lewis structure of NO3- in which the formal charge of nitrogen (N) is zero?

Calculate the enthalpy change for the following reaction: 2CH4(g) + 3O2(g) → 2CO(g) + 4H2O(l) ∆H = ? Given the following reactions and their ∆H values: CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) ∆H = -890.0 kJ 2CO(g) + O2(g) → 2CO2(g) ∆H = -566.0 kJ

Classify the following process as endothermic or exothermic and give the sign of ∆H.