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Questions in Grade College

[Answered] Consider the following intermediate chemical equations: [tex]$\begin{array}{l} CH_4(g)+2 O_2(g) \rightarrow CO_2(g)+2 H_2 O(g) \ 2 H_2 O(g) \rightarrow 2 H_2 O(l) \end{array}$[/tex] Which overall chemical equation is obtained by combining these intermediate equations? A. [tex]$CH _4(g)+2 O _2(g) \rightarrow CO _2(g)+2 H _2 O ( I )$[/tex] B. [tex]$CH _4(g)+2 O _2(g) \rightarrow CO _2(g)+2 H _2 O ( g )$[/tex] C. [tex]$CH _4(g)+2 O _2(g) \rightarrow CO _2(g)+4 H _2 O ( g )+2 H _2 O ( l )$[/tex] D. [tex]$CH _4(g)+2 O _2(g) \rightarrow CO _2(g)+ BH _2 O ( g )$[/tex]

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[Answered] A secant and a tangent meet at a 90° angle outside the circle. What must be the difference between the measures of the intercepted arcs? A. 45° B. 90° C. 180° D. 270°

[Answered] Each leg of a $45^{\circ}-45^{\circ}-90^{\circ}$ triangle measures 12 cm. What is the length of the hypotenuse? A. 6 cm B. $6 \sqrt{2} cm$ C. 12 cm D. $12 \sqrt{2} cm$

[Answered] If you put 25 ml of concentrate in a glass, how much water should be added? 1 part concentrate to 2 parts water

[Answered] Puritan communities in New England in the 1600s believed that all children should learn to read and write so they could A. understand business matters. B. communicate with relatives in England. C. attend assembly meetings. D. read and study the Bible.

[Answered] Select the correct answer. Mary pushes a crate by applying force of 18 newtons. Unable to push it alone, she gets help from her friend, Anne. Together they apply a force of 43 newtons, and the crate just starts moving. If the coefficient of static friction is 0.11, what is the value of the normal force? A. [tex]$2.0 \times 10^2$[/tex] newtons B. [tex]$2.6 \times 10^2$[/tex] newtons C. [tex]$3.9 \times 10^2$[/tex] newtons D. [tex]$4.0 \times 10^2$[/tex] newtons E. [tex]$4.3 \times 10^2$[/tex] newtons

[Answered] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Answered] What makes wind energy "green"? A. It does not cost anything at all. B. It does not require farming. C. It does not work at night. D. It does not require burning anything.

[Answered] Why did Theodora work to change divorce laws in the Byzantine Empire? A. to help Judges B. to help women C. to protect the church D. to protect the empire