Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of soup containing 259 g of water is heated in a microwave oven from 20.0°C to 98.0°C, with radiation of wavelength 1.55 × 10-2 m. How many photons are absorbed by the water in the soup? X 10 (select) photons (Enter your answer in scientific notation.)

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Q: A glass container was initially charged with 1.50 moles of a gas sample at 5.00 atm and 21.7 °C.…

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Q: Why are group 12 elements considered representative metals? The last electron is an s electron They…

A: The group 12 elements include Zinc, mercury and cadmium metals.

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Q: What degree amines are they and name the compound.

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Q: a. b. с. d. H3C CH3 небител CH3 б H.C. CH3 ? ? CH3 ? H3C H3C ? с. CH3 CH3 H3C. H3C Br CH3 Br OH CH3…

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Q: Which of the following has a zero dipole moment? O SO₂ O PF5 Ο NO2 O HCN O NH3

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Q: Show how to make 2-hexanone starting with Malonic ester or an acetoacetic ester.

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Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.