Chemistry Cumulative Exam Questions and Answers 100% Pass
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Course
Chemistry Cumulative
Institution
Chemistry Cumulative
Chemistry Cumulative Exam Questions
and Answers 100% Pass
In which orbitals are the outermost electrons of carbon found?
s orbital and p orbitals
To demonstrate both physical and chemical transformations in a classroom, which example
would be most effective?
Igniting a candle
Wha...
1 Chemistry Cumulative Exam Questions and Answers 100 % Pass In which orbitals are the outermost electrons of carbon found? ✔✔s orbital and p orbitals To demonstrate both physical and chemical transformations in a classroom, which example would be most effective? ✔✔Igniting a candle What distinguishes heat from temperature? ✔✔Temperature reflects the degree of thermal energy, whereas heat represents the transfer of this energy. What does a water enthalpy of forma tion value of -285.8 kJ/mol imply? ✔✔Heat is released during the formation of water. Which kinetic -molecular theory postulate best describes the event shown in the diagram? ✔✔Collisions between particles are perfectly elastic. 2 Among the elements barium (Ba), sulfur (S), silicon (Si), and calcium (Ca), which one requires the least energy to release an electron during bond formation? ✔✔Barium When combining two cups of coffee, one at 10°C and one at 20°C, what will the temperature of the combined mixture be? ✔✔The energy flows from the hotter coffee to the cooler one, resu lting in an average temperature of 15°C. What is the binding energy of an atom with a mass defect of 1.643 × 10⁻²⁸ kg, calculated using E = mc² (with the speed of light being approximately 3.00 × 10⁸ m/s)? ✔✔1.48 × 10⁻¹¹ J Elements with fully completed valence electron shells are mainly located in the ✔✔p block.
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