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- Find explicit particular Soutions of the initial value problems 26 ay-2xy?+3X²y2 y (1)= -16.a)What do covalently bonded atoms form? __________________________ b) Describe the attractive forces between the atoms in a molecule and between molecules. Why do molecular compounds have low melting and boiling points compared to ionic compounds? Covalent compounds are soft and squishy compared to ionic compounds. Describe the analogy used to help us understand this comparison. Do covalent compounds conduct electricity when they are mixed with water? Explain.2. Give the total number of electrons, the number of valence electrons and the number of shells containing electrons in each of the following. a. A phosphorus atom Number of electrons Number of valence electrons Number of shells b. A carbon atom Number of electrons Number of valence electrons Number of shells
- PHENGR: Please show solutions for 2. b, c, dGiven IE(pc) = 1.2 mA, beta = 120 and ro = 40 kilo ohm, sketch the following: a. Common-emitter hybrid equivalent model re equivalent model b. Common-emitter c. Common-base hybrid equivalent model re equivalent model d. Common-baseQUESTION 11 The figure below shows some of the ions used in calculating the Madelung constant for NaCl. The Madelung constant is given by: 12 8 6 24 √₂ 2 √32+ √5 α = 6 -- + The black circle in the center of the figure represents the reference sodium ion. Which ions contributed to the (-6/2) term in the series for a?
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