Questions in Grade College

Questions in Grade College

[Jawaban] Which of the following is an acid-base reaction? [tex]Fe ( s )+2 AgNO _3( aq ) \rightarrow 2 Ag ( s )+ Fe \left( NO _3\right)_2( aq )[/tex] [tex]C ( s )+ O _2(g) \rightarrow CO _2(g)[/tex] [tex]MgSO _4( aq )+ Ba \left( NO _3\right)_2( aq ) \rightarrow Mg \left( NO _3\right)_2( aq )+ BaSO _4(s)[/tex] [tex]2 HClO _4( aq )+ Ca ( OH )_2( aq ) \rightarrow 2 H _2 O ( I )+ Ca \left( ClO _4\right)_2( aq )[/tex] None of the above are acid base reactions.

[Jawaban] Activity 1 1. State whether each of the following symbolic statements is true $(T)$ or false $(F)$. If the statement is true $(T)$, state the property/law that was applied. For any three numbers $\otimes, \oplus$ and $\otimes$. (a) $\otimes+\nabla=\nabla+$ (b) $\Delta+\Delta \Delta=\Delta \Delta+\Delta$ (c) $\nabla+(\otimes)+\otimes)=(\nabla+\otimes)+$ (d) $\hat{\theta} \times \vec{\nabla}=\vec{\theta}$ (e) $\nabla \times(\vec{\nabla} \times \otimes)=(\nabla \times \otimes) \times$ (f) $(\boxtimes \nabla \times \nabla) \times \otimes=\otimes \times(\nabla+\otimes)$

[Jawaban] Kari is on a trip to Italy. She has made a list of cities she would like to tour while she is there, as well as how much she expects it will cost her (between transportation, admission, souvenirs, and so on) to see each one. The prices are listed in either US dollars ($) or euros (€). Kari has a budget of $585 set aside for sightseeing. | Item | Cost | Currency | | ------------------- | ------ | -------- | | Tour of the Vatican | 68.77 | € | | Tour of Rome | 95.41 | € | | Tour of Naples | 71.06 | $ | | Tour of Venice | 113.38 | $ | | Tour of Milan | 49.69 | € | She would also like to tour Genoa as well, which would cost her 660.85. If the conversion rate of US dollars to euros at the time of Kari's visit is 1:0.6859, how will this affect her budget? Round all dollar values to the nearest cent. a. Kari can see Genoa and have $60.33 left in her budget. b. Kari can see Genoa and have $41.38 left in her budget. c. Kari has almost exactly enough left in her budget to see Genoa. d. Kari cannot afford to see Genoa, because it would put her $84.48 over budget.

[Jawaban] Read the sentence. Allie considered it carefully and decided to train for the marathon herself. Which type of pronoun would best complete the sentence? A. objective B. subjective C. intensive D. reflexive

[Jawaban] From the equation, find the axis of symmetry of the parabola. $y=2 x^2+4 x-1$ A. $x=3$ B. $x=-1$ C. $x=-3$ D. $x=1$

[Jawaban] Jace gathered the data in the table. He found the approximate line of best fit to be [tex]y=-0.7 x+2.36[/tex]. | x | y | |---|---| | 0 | 3 | | 1 | 1 | | 4 | 0 | | 5 | -2 | | 7 | -2 | What is the residual value when [tex]x=5[/tex]? A. -3.14 B. -0.86 C. 0.86 D. 3.14

[Jawaban] In photosynthesis, what is the fate of the oxygen atoms present in CO2? A. in sugar molecules B. in sugar molecules and in water C. as molecular oxygen D. as molecular oxygen and in sugar molecules E. in water

[Jawaban] The reaction below is at dynamic equilibrium. [tex]N_2(g)+3 H_2(g) \longleftrightarrow 2 NH_3(g)[/tex] Which statement is true for the equilibrium system? A. The concentration of [tex]NH _3[/tex] is greater than the concentration of [tex]N _2[/tex]. B. The rate of the forward reaction equals the rate of the reverse reaction. C. The rate of the forward reaction is greater than the rate of the reverse reaction.

[Jawaban] D. solid foam. 8. A fire on an elevated object such as a wall or billboard is best attacked with A. roll-on B. rain-down C. bank-down/bounce-off D. drop down 9. Which element of the fire tetrahedron is not affected by a blanket of foam? A. Fuel

[Jawaban] Which situation will cause a disinfectant to lose its effectiveness in destroying microorganisms? A. Solution not prepared or mixed properly before use B. Mixing of the disinfectant solution before use C. Storage of the disinfectant solution in a closed container D. Usage of disinfectant solution on a previously sanitized instrument