Total # Posts: 23
Q - An electrochemical reaction occurs between an unknown element and zinc. The half-cell reaction for the zinc is: Zn(s) ? Zn2+(aq) + 2e? The cell potential for the reaction is Eºcell = 1.83 V. Is the reaction spontaneous or nonspontaneous? Explain. What is the half-cell...
November 8, 2016
In the case of a negative externality: Select one: a. the private market does not produce enough of the good. b. market price reflects the social costs of production. c. efficiency requires that the government impose a subsidy. d. market price reflects only the private costs ...
October 22, 2015
A test consists of 12 multiple choice questions with 5 choices for each question. As an experiment, you GUESS on each and every answer without even reading the questions. Probability of getting less than 4 questions correct on this test is:
May 20, 2014
These are the Answers: 1. B/2 (False) 2. A/1 (Nonrenewable resources) 3. D/4 (Gasoline) 4. A/1 (A timber company only cuts some trees down and replaces them with new trees.)
March 11, 2014
Ali needs to fix plug inside the wall, he then buy a steel plug that is going to be placed in a ring made of aluminium. At 15 degree celcius, the diameter of the plug is 10.765 cm and that of the inside of the ring is 10.432 cm. What common temperature must both steel and ...
January 2, 2014
Eelectrons, like all forms of matter, fall under the influence of gravity. if a electron is projected horizontly with a speed of one-tenth speed of light, how far will it fall in traversing 1 meter of horizontal distance.
March 3, 2013
economics please help
The majority of the worlds diamonds comes from Country A and Country B. Suppose that the marginal cost of mining a diamond is $1,000 per diamond and that the demand schedule for diamonds is as follows: Price Quantity $ 6,000 5,500 5,000 6,500 4,000 7,500 3,000 8,500 2,...
September 27, 2011
i couldn't figure this one out. Materials, such as water, that become gaseous easily at room temperature are called volatiles. How does the complete lack of volatiles in lunar rocks support the impact theory of moon's formation? please help and thank you
November 1, 2009
You only factor out what all of the terms share. Not all of the terms share 2b as a factor (only the -16ab and +32b terms can have a 2b factored from them. The 2b in the 2a^2b term is in the exponent, which can't be used as a factor.) So what do all 3 terms share? That'...
January 7, 2009
i am having so much trouble rearranging these equations! i know the answers to them but i don't understand how to get them.. The original equation is W= Q(B-C)/C what is B? what is Q? What is C? B is supposed to be C(W+Q)/Q Q is supposed to be WC/(B-C) and C is supposed to...
October 9, 2008