Which of the following is a combustion reaction?

2AgNO3 + H2S → Ag2S + 2NHO3

2H2O → 2H2 + O2

4Fe + 3O2 → 2Fe2O3

2Al + N2 → 2AIN

Which statement about molecular orbitals is not true? Molecular orbitals result from the orbital contributions of all atoms within a molecule.

Name three chemical properties of wood

10. If a reaction has ΔS = - 100 J/K and is spontaneous, what must be true of the surroundings? A) ΔSsurroundings > 100 J/K B) ΔSsurroundings > - 100 J/K C) ΔSsurroundings = 100 J/KD) ΔSsurroundings < - 100 J/K E) ΔSsurroundings < 100 J/K

Determine the number of moles of citric acid in 10.0 mL of pineapple juice

How do the atomic number and atomic mass of an atom change when a proton is added to its nucleus?

Sodium phosphate and calcium chloride react to form sodium chloride and calcium phosphate. If you have 379.4 grams of calcium chloride and an excess of sodium phosphate, how much calcium phosphate can you make?

What is the maximum number of electrons in the second electron shell, closest to the nucleus?

Which compound is formed from its elements by an exothermic reaction at 298 K and 101.3 kPa?

Energy can be transformed from one form to another. The diagram shows one such process. Which energy transformation is represented in the diagram?

Mathematically define heat capacity with equations.