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ricardo martin

ricardo m.

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The ion NO$_2$$^-$ has how many resonance structures? 3, 2 with a single and triple bond and 1 with 2 double bonds. 2, each with a single and double bond. 2, each with a single and triple bond. None

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How many grams of KF are there in 196 grams of an aqueous solution that is 11.4 % by weight KF.

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Consider the following hypothetical molecular collisions and predict which of the following will form potential products, given the values for the energy of activation, $E_a$, and enthalpy of the reaction, $\Delta H$, in combination with the molecular orientation. Check all that apply. ► View Available Hint(s) Π $E_a$ = 7.55 kJ, $\Delta H$ = -9.56 kJ Π $E_a$ = 0.59 kJ, $\Delta H$ = -1.28 kJ Π $E_a$ = 4.58 kJ, $\Delta H$ = -5.38 kJ Π $E_a$ = 2.48 kJ, $\Delta H$ = -5.98 kJ Π $E_a$ = 0 kJ, $\Delta H$ = -1.28 kJ Π $E_a$ = 6.36 kJ, $\Delta H$ = -3.58 kJ

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One carpenter can complete a kitchen in 10 days. With the help of another carpenter, they can do the job together in 5 days. How long would it take the second carpenter if he worked alone?

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Evaluate the integral: ∫ x^2 / (x^2 + 49) dx = Box + C

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Evaluate the following limit, if it exists: \lim_{x \to \infty} 24x^{14} \ln \left( 1 - \frac{16}{x^{14}} \right) Note: Write the exact answer not the decimal approximation (for example write \frac{4}{5} not 0.8). Answer: \lim_{x \to \infty} 24x^{14} \ln \left( 1 - \frac{16}{x^{14}} \right) =

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If n = 11, x ¯ = 41, and s = 9, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population. Give your answers to three decimal places. < μ <

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Question 4: Challenging question: Solve a formula question, or draw a diagram, analyze the code, and write the paragraph about the given image, explain the components of the image, or anything else you prefer (0.8 points): The propositional boolean operator "exclusive or," often represented as XOR and written as "?", is a logical operator that applies to two propositions and returns true if exactly one of the propositions is true and false otherwise. Also, the negation of XOR is the logical biconditional. Use the truth table to prove that $(A \oplus B) \lor (B \land (A \implies B))$ and $A \lor B$ are equal. Your answer: Please draw the related architecture diagram and explain your answer.

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(c) $\lim_{x \to -1} \frac{x^4 + \frac{2}{x}}{x^2 (x + \frac{1}{2})(x - 1)}$ (d) $\lim_{x \to 5} \frac{4}{x - 5}$

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Three point charges lie along a straight line as shown in figure below, where q1 = 4.7 µC, q2 = 6 µC and q3 = -5.3 µC. The separation distances are d1 = 3.5 cm and d2 = 2.1 cm. Calculate the magnitude and direction of the net electric force on q1.

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