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AaBbCl AaBbCel AaBbCr AaBbcct AaB AaBbco 1 Normal 1 No Spac... Heading 1 Heading 2 Title Subtitle Font Paragraph Styles Section I: Multiple Choice/Fill in the Blank Please choose the BEST possible answer for the following questions. (2) The 4s orbital has a principle quantum mumber of momentum quantum mumber of 1. and an angular 2. (2) The shape of an orbital is determined by the number and the quantum quantum number (3) Van der Waal's equation is used when gas density is temperatures are near 3. K, and pressure is around atm 4. (2) Heisenberg's Uncertainty Principle states that the and (2) Thermal energy always flows from (2) When energy flows from the system to the surrounding the reaction is called system the reaction is called of an electron are probabilistic. 5. to until the temperatures are equal 6. . When energy flows from the surrounding to the 7. (2) Energy is defned as

Explanation / Answer

1. The 4s orbital has principal quantum number of 4 and angular momentum quantum number of 0.

2. The shape of an orbital is determined by the angular momentum quantum number.

3. Van der Waal's equation is used whn the gas density is negligible, temperatures are near 300K and pressure of 1 atm.

4. Heisenberg's Uncertainity principle states that exact position and exact speed of an electron are probalistic.

5. Thermal energy always flows from hotter temperature to cooler temperature until the temperatures are equal. (Second law of thermodynamics)

6. When the energy flows from system to surrounding the reaction is called exothermic. When the energy flows from surrounding to system the reaction is called endothermic.

7. Energy is defined as ability to do work.(in science)

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