Questions in Grade College

Questions in Grade College

[Jawaban] Consider the following chemical reaction in equilibrium: [tex]$CH_3 COOH \Leftrightarrow CH_3 COO^{-}(a q)+H^{+}(a q)$[/tex] What will happen to the chemical equilibrium if [tex]$MgCl _2$[/tex] is added? A. The chemical equilibrium of the system will be unaffected. B. The chemical equilibrium of the system will shift to the right to favor the forward reaction. C. The chemical equilibrium of the system will be damaged irreversibly.

[Jawaban] What is the domain of the function [tex]y=\sqrt{x}[/tex]? A. [tex]-\inftyB. [tex]0C. [tex]0 \leq x<\inftyD. [tex]1 \leq x<\infty

[Jawaban] How does President Wilson build his argument and persuade his listeners in "War"? A. He uses positive words to describe the enemy. B. He cites published works to support his view. C. He uses confident and powerful words. D. He tells a personal story that relates to the topic.

[Jawaban] Which equation shows the proper setup to find the volume of a $0.250 M CaCl _2$ solution that contains 39.5 g or $CaCl _2$? $0.250 M CaCl _2=\frac{39.5 g CaCl _2}{V}$ $V=39.5 g CaCl _2 \times \frac{1 mol CaCl }{110.98 g CaCl _2} \times \frac{1 L}{0.250 mol CaCl _2}$ $V=\frac{39.5 g CaCl _2}{0.250 M CaCl _2}$

[Jawaban] CPD is twice as big as APB, and reflex angle is five times as big as APB. Make an equation in x, solve the equation, and find the fair angles.

[Jawaban] Which characteristic of minerals may be described using words such as bladed, fibrous, platy, or dendritic? A. Crystal habit B. Luster C. Streak D. Lattice framework

[Jawaban] Determine the difference. [tex]$\frac{3}{4}-\frac{5}{16}= ?$[/tex]

[Jawaban] Solve [tex]\frac{1}{24} m-\frac{2}{3}=\frac{3}{4}[/tex] for [tex]m[/tex]. A. [tex]m=-12[/tex] B. [tex]m=34[/tex] C. [tex]m=36[/tex] D. [tex]m=12[/tex]

[Jawaban] Which equation is in standard form? a. [tex]$x+3=-5y$[/tex] b. [tex]$5-x=0$[/tex] c. [tex]$y=3x+6$[/tex] d. [tex]$-8x+3y=12$[/tex]

[Jawaban] Laura is enrolled in a one semester computer applications class. She achieves grades of $70, 86, 81$, and 83 on the first four exams. The final exam counts the same as the four exams already given. If $x$ represents the grade on the final exam, write an expression that represents her course average. If Laura's average is greater than or equal to 80 and less than 90, she will earn a B in the course. Write a compound inequality that must be satisfied to earn a B and solve the inequality. a. [tex] \begin{array}{l} \frac{70+86+81+83+x}{5} \\ 80 \leq x\ \textless \ 130 \end{array} [/tex] b. [tex] \begin{array}{l} \frac{70+86+81+83+x}{5} \\ 80 \leq \frac{70+86+81+83+x}{5}\ \textless \ 130 \end{array} [/tex] c. [tex]\frac{70+86+81+83+\pi}{5}[/tex]