# Posts by curt

Total # Posts: 17

Chemistry
Estimate the value of deltaGf for COCl2(l) at 25 degrees celcius

math
A school debate team has 4 girls and 6 boys. A total of 4 of the team members will be chosen to participate in the district debate. What is the probability that 2 girls and 2 boys will be selected? A.3/7 B.4/10 C.1/14 D.1/210

physics
An object is thrown vertically up and attains an upward velocity of 10 m/s when it reaches one fourth of its maximum height above its launch point. What was the initial speed of the object? The acceleration of gravity is 9.8 m/s2. Answer in units of m/s

chemistry
How many atoms of tin are necessary to react completely with 7.42 x 10(24th)g of HF. Sn(s) + 2HF(g) = SnF2(S) + H2 (g)

Math
A store mixes Brazilian coffee worth \$10 per kilogram and Turkish coffee worth \$12 per kilogram. The mixture is to sell for \$11 per kilogram. Find out how much of each should be used to make a 216 kilogram mixture.

Algebra
The vertices of a kite have coordinates (14,2), (10,-4), (6,2), and (10,y). If the kite has an area of 64 square units, what is the value of y?

History
How does the process of quarantine change from the Indians (small pox), Italians (typhoid) to the Chinese (bubonic plague)? Explain.

A good paragraph has unity; that is, it discusses only one idea, or topic. The topic sentence states the main idea and provides a scaffold to structure your document. Your writing will be easier to read if you make the topic sentence explicit and put it at the beginning of the...

Lit
The reasons Mcbeth fels he should not kill Duncan?

physics
the question is a bit ambiguous in not specifying whether line of sight is UP from the horizontal or DOWN. the correct answer could be: h = 85m[tan 38deg + tan 35deg] ...if the observer is in a window of a nearby building or on a hilltop, etc. [many professors are ambiguous ...

math
What happens when the king of breasts run in front of a train?

if x=-5, y=4 and z=-3 solve x squared (3x-8y)

algebra
-6x>1/13 the question is asking me for a solutions set using the multiplication principle

algebra
2r-9s=-24 9r+2s=62 the quest asks to write a order pair or tell if there is infinitely solutions or no solutions. can you help

math
thank you

physical science
how much current flows through a circuit if the resistence is 4 ohms and there is a 12 volt battery?

College Chemistry
pH = 3.16 Al(OH)3 + OH^- ==> Al(OH)4-

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