Numerade

Questions asked

BEST MATCH

What systemic manifestation(s) can occur due to a tumor? Select all that apply. Answers: A - E A Severe fatigue B Infections C Muscle weakness D Ulcerations E Intestinal obstruction

View Answer

BEST MATCH

why do minimum wage laws in italy and spain result in a greater prevalence of workers being hired in unreported jobs "off the books" than do minimum wage laws in the United states?

View Answer

BEST MATCH

1. What is the “common ion” that you added to test tubes #2–5? [Insert answer here] 2. How (in what direction does the equilibrium shift) does the common ion affect the equilibrium reaction as the amount of NaCl solution increases from 1–4 mL? [Insert answer here] 3. Based on the color, in which direction does the equilibrium shift? Indicate the color of the solution and in which direction the equilibrium shifts, toward Reactants or Products? [Insert answer here] 4. Write a balanced equation showing what happens when AgNO3 is added and explain why the equilibrium shifts. Explain. Do not simply state in which direction. Stating that the addition of a substance or chemical causes a stress on the equilibrium is not sufficient and will be marked as incorrect. [Insert answer here] 5. Explain the equilibrium shift that occurs when water is added to the original equilibrium reaction. Explain. Do not simply state in which direction. Stating that the addition of a substance or chemical causes a stress on the equilibrium is not sufficient and will be marked as incorrect. Cu(H2O)62+(aq) + 4Cl–(aq) D CuCl42–(aq) + 6H2O(l) Blue Green [Insert answer here] 6. Write “heat” on either the left or right side of this equation, based upon observations from the addition and removal of heat in steps 3 and 4, respectively, and the corresponding shifts in equilibrium. [Insert answer here] + Cu(H2O)62+(aq) + 4Cl–(aq)D CuCl42–(aq) + 6H2O(l) + [Insert answer here] Blue Green 7. Given the equilibrium equation for a general reaction, A + B D C + D, explain what happens to the reactants and products from time 0 until the time at which the reaction reaches equilibrium. [Insert answer here] 8. Given this reaction at equilibrium, C(s) + CO2(g) D 2CO(g) (∆H° = 119kJ), explain the changes that would occur when the following stresses are applied or removed for this reaction. Answer by indicating if the reaction shifts towards the Reactants/Left or the Products/Right and explain why. Answers without the explanation portion will be incorrect. Explain. Do not simply state in which direction. Stating that the addition of a substance or chemical causes a stress on the equilibrium is not sufficient and will be marked as incorrect. a. CO is removed. [Insert answer here] b. Heat is added. [Insert answer here] c. CO2 is added. [Insert answer here] d. Heat is removed. [Insert answer here]

View Answer

BEST MATCH

How many solutions are there to the equation a + b + c + d + e = 500 if each a, b, c, d and e are integers greater than or equal to 10?

View Answer

BEST MATCH

When NADP+ is changed to NADPH during the light reaction portion of photosynthesis, what is happening to NADP+?

View Answer

BEST MATCH

is the most important means to regulate water output so it will match intake. expired air perspirations feces urine

View Answer

BEST MATCH

A H$_3$CC=CCH$_2$CH$_3$ B OH C D Multiple Select Question Select all that apply Select all of the compounds that can be classified as alkenes. A B C D

View Answer

BEST MATCH

Find the indicated derivative using implicit differentiation. $8xy - \frac{y}{8} = \frac{3}{x}$; $\frac{dy}{dx}$ $\frac{dy}{dx} = -\frac{y(y - \sqrt{y(y + 6144)})}{48}$

View Answer

BEST MATCH

$10\%$ Problem 6: A wave function is given by the equation $\Psi(x, t) = Ae^{i(kx - \omega t)}$. 33\% Part (a) Calculate $ - \frac{\hbar^2}{2m} \frac{\partial^2 \Psi(x, t)}{\partial x^2} $. $\frac{-\hbar^2}{2m} \frac{\partial^2 \Psi(x, t)}{\partial x^2} = $ 33\% Part (b) Calculate $ih \frac{\partial \Psi(x, t)}{\partial t}$. 33\% Part (c) Based on your answers to parts (a) and (b), does the function $\Psi(x, t) = Ae^{i(kx - \omega t)}$ satisfy the time-dependent Schrodinger equation?

View Answer

BEST MATCH

(b) Suppose that $u(x, t)$ satisfies $\frac{\partial u}{\partial t} - \frac{\partial^2 u}{\partial x^2} = 0$. (i) By direct substitution, show that the scaled solution $u(\mu x, \mu^2 t)$, for arbitrary constant $\mu$, must also satisfy the same equation. (ii) Assume that $u = F(\eta)$ for some function $F$ with $\eta = x/\sqrt{t}$. Derive the following ODE for $F(\eta)$ $\frac{d^2 F}{d\eta^2} + \frac{\eta}{2} \frac{dF}{d\eta} = 0$. (iii) Solve the ODE of 4(b)(ii) to find $F(\eta)$ in terms of two arbitrary constants and the error function. $\text{erf}(y) = \frac{2}{\sqrt{\pi}} \int_0^y e^{-s^2} ds$. (iv) Specify the solution of 4(b)(iii) satisfying $u(0, t) = 1$ and $u(x, 0) = 0$. Use the fact that $\int_0^\infty e^{-s^2} ds = \frac{\sqrt{\pi}}{2}$. [15]

View Answer

jaime j.