Numerade

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For each chemical reaction listed in the first column of the table below, predict the sign (positive or negative) of the reaction entropy $\Delta S_{rxn}$. If it's not possible to decide with the information given, check the "not enough information" button in the last column. Note for advanced students: Assume the temperature remains constant. Assume all gases and solutions are ideal. reaction sign of reaction entropy $CaO(s) + CO_2(g) \rightarrow CaCO_3(s)$ $\Delta S_{rxn} < 0$ $\Delta S_{rxn} > 0$ not enough information. $2NH_3(g) \rightarrow N_2(g) + 3H_2(g)$ $\Delta S_{rxn} < 0$ $\Delta S_{rxn} > 0$ not enough information. $Ba(OH)_2 \cdot 8H_2O(s) + 2NH_4Cl(s) \rightarrow BaCl_2(aq) + 2NH_3(aq) + 10H_2O(l)$ $\Delta S_{rxn} < 0$ $\Delta S_{rxn} > 0$ not enough information. Explain your rationale for each choice above.

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Based on the experience of the Romanian children who were institutionalized during the late twentieth century, what might we conclude about emotional development? Question 19 options: 1) There appears to be a sensitive period for emotional development which ends at approximately 6 months of age. 2) There is no critical or sensitive period for emotional development. 3) No matter how impoverished an infant's emotional environment, self-righting will protect them from permanent damage. 4) As long as children are adopted by 6 years of age, they can overcome any emotional disability that had developed between 1 and 2 years of age.

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Find the indefinite integral. (Remember the constant of integration.) $ \int \sqrt{36 - 4x^2} \, dx $

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1. Consider the function $f(x) = \frac{x^2 - 9}{x - 3}$. (a) What is the domain of $f$?

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Find and simplify the difference quotient \frac{f(x+h) - f(x)}{h}, h \neq 0 for the given function. f(x) = \frac{2}{x} \frac{f(x+h) - f(x)}{h} = \boxed{\text{(Simplify your answer.)}}

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Panuto. Piliin ang titk ng tamang sagot at isulat sa sagutang papel. 1. Pinalawig ng mga pinunong tinatawag na halach uinic ang mga pamayanang urban na sentro rin $ \mathrm{ng} $ kabihasnang Maya sa pagsamba ng kanilang mga diyos. Ano ang ibig sabihin ng halach uinic? A. tunay na lalaki C. tunay na pinuno B. tunay na kakaiba D. tunay na tagapaglingkod

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The demand and supply schedules in this table list the quantity supplied and quantity demanded of oil workers at different salaries. Demand and Supply of Oil Workers Annual Salary Quantity Demanded Quantity Supplied $50,000 40,000 30,000 $55,000 35,000 35,000 $60,000 30,000 40,000 $65,000 25,000 45,000 $70,000 20,000 50,000 The highest and lowest points on the supply and demand curves have been plotted for you and are stationary. Using the demand and supply schedule provided above, move the other points on the graph to their correct coordinates to discover the equilibrium point where the demand curve of those employers who want to hire oil workers intersects with the supply curve of those who are qualified and willing to work as oil workers.

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2 equal charges, 134 micro Coulombs each, experiences an attraction force of 134 Newton. Calculate the distance between the charges in mm. Your Answer: Answer units Question 8 (2 points) Listen What is the total charge of all protons in 4 gram of water (H2O)? Your Answer: Answer units

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4. Consider the equation $x^2 + 4xy + y^2 = 13$. a. Find all points on the graph of this equation that have an x-coordinate of $x = 2$. b. Find the slope of the line tangent to the graph of the above equation at each point whose x- coordinate is $x = 2$.

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Consider the following possible wavefunctions for a 2-electron system ($r_1$ and $r_2$ represented as 1 and 2 for clarity): $\psi_A (1,2) = \frac{1}{\sqrt{2}}[\phi_{1s}(1)\alpha(1)\phi_{2s}(2)\beta(2) - \phi_{1s}(2)\alpha(2)\phi_{2s}(1)\beta(2)]$ $\psi_B (1,2) = \frac{1}{\sqrt{2}}[\phi_{1s}(1)\alpha(1)\phi_{2s}(2)\beta(2) - \phi_{1s}(2)\alpha(2)\phi_{2s}(1)\beta(1)]$ Which wavefunction is adequate for a 2-electron system? Prove it.

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nicole p.