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Question 18 1 pts Which of the following pairs of charged particles will experience the LARGEST...
Question 4 (1 point) Consider Lit, N3-, and F. Which ratio should be the largest? (radius Li+)/(radius N3-) O (radius N3-)/(radius Lit) O (radius F")/(radius Lit) (radius Li+)/(radius F") haction 11 Question 3 (1 point) The spheres below represent atoms of Si, Ge, C, and Sn (not necessarily in that order). r=75 pm r=140 pm r=110 pm (b) r=120 pm (c) Which one of these spheres représents an atom of Si? sphere (c) sphere (b) sphere (a) Osphere (d)
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Question 18 0.2 pts Which one of the following pairs of goods is likely to have a negative cross- price elasticity of demand? O manicures and pedicures sofas and dining room tables O purses and backpacks shoes and socks trucks and sedans Question 19 0.2 pts When two goods are substitutes for each other, what will the cross-price elasticity be? O It will be positive O It is unaffected by goods being substitutes O The...
Question 3 5 pts Gold nanoparticles are typically prepared by the reduction of aurochloric acid (HAUCla) with boiling sodium citrate. The sodium citrate is used in excess and it is assumed that 100% of the Au atoms end up as part of the nanoparticles. If you start with a 1.00% (w/w) aqueous solution of HAC14:3H20 (aurochloric acid is typically available as the trihydrate) and the average particle diameter is 20.0 nm, what is the concentration of Au nanoparticles in the...
Question 2 1 pts Which of the following defines a direction along the x-axis? O [011] (011) (100) O [100] Question 5 1 pts In the BCC system, in which plane do the atoms touch their neighbors? O (111) O (110) O (100) (001) 1 pts Question 6 6:50 PM 7/2/2020
Question 2 1 pts Which of the following pairs of compounds would give the most successful crossed aldol condensation when combined in the presence of a strong base? (Note: by "successful" we mean that the reaction 1) actually works, and 2) gives only a single aldol condensation product.) masa - marce nie Paic: one and Love Pair o: ¿ and i Оме O
Question 2 0/1 pts Which of the following ordered-pairs is a solution of y = - **+5 (8,-5) (-1,5) (3.1) 19:9) (0.3)
Question 4 (1 point) Order the following elements from smallest to largest atomic radius: C, N, F, O, B O C, N, F, B, 0 OF, O, B, C, N OF, O, N,C,B OF, C, B, O, N
Question 10 3 pts Which of the following would result in the widest (largest) confidence interval? o large sample size and 99-percent confidence o large sample size and 95-percent confidence o small sample size and 99-percent confidence small sample size and 95-percent confidence. Question 11 3 pts If the Durbin-Watson statistic is less than 1, then spurious regression is likely an issue. o positive serial correlation is likely an issue. o non-stationarity is likely an issue. o negative serial correlation...
Question 15 1 pts Which pair of movie types from the IMDB database have the highest precision and smallest range in lengths as per the figure? MPAA.Rating 100 150 125 Length (PG,PG) None of the above (PG-13,R) (PG,PG-13)
Question 3 1 pts The electric potential at point Pis +100 V. Which of the following can we determine about the electric field at P? O None of the above Its magnitude, but not direction Its direction, but not magnitude Its magnitude and direction Its magnitude, direction, and energy Only that it is not zero