1. Which gas law states that the volume of a gas is directly proportional to its temperature at constant pressure?
2. How many moles of oxygen gas (O₂) are required to completely react with 2 moles of hydrogen gas (H₂) to form water (H₂O)?
3. The enthalpy change for a reaction is positive. What does this indicate about the reaction?
4. In which of the following processes are covalent bonds broken? I. Melting camphor balls II. Boiling water III. Boiling ethanol IV. Dissolving iodine in water
5. The correct electronic configuration for an element with atomic number 24 is:
6. The equation that illustrates the wave-particle duality nature of matter is:
7. A polar molecule is the one with:
8. The equation relating Ke and Kp is:
9. ___________ is a quantitative measure of the degree of charge separation in a molecule.
10. In the reaction C₃H₈O₃ + 2O₂ → 3CO₂ + 4H₂O, the coefficient of C₃H₈O₃ when the equation is balanced is:
11. What volume of gas is occupied by 1 mole of an ideal gas at standard temperature and pressure (STP)?
12. The temperature at which the vapor pressure of a liquid equals the pressure exerted on the liquid is called:
13. What volume will 2.0 moles of an ideal gas occupy at STP?
14. In which of the following molecules does the Sulfur atom have an expanded octet? I. SO₂ II. SF₄ III. SO₂Cl₂ IV. SF₆
15. The state reached by a reaction mixture when the rates of the forward and backward reactions have become equal is known as:
