Key: to use the conversion factor correctly. Conversion factor-a fraction whose numerator and denominator are the same quantity expressed in different units. Given unit Converting units: If a woman has a mass of 115lb, what is her mass in grams? Given Unit (lb) A car travels 28mi per gallon of gasoline. How many kilometers per […]
3 P4 + 5O2 W P4O10 K= [P4O10]/ [P4] [O2]5 Calculating equilibrium Constants Lets look at the equilibrium that describes waht happens when acetic acid dissociates in water. What do you think the expression for the reverse reaction lC + mDW jA + kB is? 4 Along the same lines, what is we have a […]
The pressure of 2.4 L of nitrogen gas in a flexible container is decreased to one-half its original pressure, and its absolute temperature is increased to double the original temperature. The volume is now Select one: a. 2.1 L. b. 4.2 L. c. 8 L. d. 17 L. e. 9.6 L. Previous page
an observe A, see another observer,B,as moving with velocity (u,v,0)and B sees C moving with a velocity of (u,0,v).what is the speed of C relative to A?
Two small insulating spheres with radius 4.00×10−2 are separated by a large center-to-center distance of 0.595 . One sphere is negatively charged, with net charge -2.40 , and the other sphere is positively charged, with net charge 3.70 . The charge is uniformly distributed within the volume of each sphere.
Which of the following correctly rationalizesthe increase in atomic radii down and to theleft on the periodic table, based on what wediscussed in class?1. Because the elements are easier to ionize, they have a larger electronegativity, andtherefore their electron affinity is not suffi-cient to reduce atomic radii.2. As you move to the left across a […]
An X-ray binary contains a 2M
A container has a large cylindrical lower part with a long thin cylindrical neck. The lower part of the container holds 12.5 m^3 of water and the surface area of the bottom of the container is 5.00 m^(2 ). The height of the lower part of the container is 2.50m and the neck contains a […]
ultraviolet light causes sunburns, while visibly even greater intensity does not. Why is this so?
A multiple choice problem presents radio buttons for student input. Students can only select a single option presented. Multiple Choice questions have been the subject of many areas of research due to the early invention and adoption of bubble sheets. One of the main elements that goes into a good multiple choice question is the […]
