A mixture of hydrocarbon gases is composed of 60 percent

Introductory Chemistry 5
How many joules of nutritional energy are in a bag of chips with a label that lists 245 Cal? If 1 lb of fat is stored by the body for each \(14.6\times10^3\mathrm{\ kJ}\) of excess nutritional energy consumed, how many bags of chips contain enough nutritional energy to result in 1 lb of body fat?

Probability and Statistical Inference 9
Let \(X_{1}\) and \(X_{2} be independent Poisson random variables with respective means \(\lambda_{1}=2\) and \(\lambda_{2}=3\). Find = 2 and = 3. Find (a) \(\mathrm{P}\left(X_{1}=3, X_{2}=5\right)\) (b) \(\mathrm{P}\left(X_{1}+X_{2}=1\right)\) Hint. Note that this event can occur if and

Principles of General Chemistry 2
Consider the following reaction energy \(diagram\): (a) How many elementary steps are in the reaction mechanism? (b) Which step is rate limiting? (c) Is the overall reaction exothermic or endothermic? Equation Transcription: Text Transcription: diagram

Chemistry: The Central Science 13
Calculate the formal charge on the indicated atom in each of the following molecules or ions: (a) the central oxygen atom in O3, (b) phosphorus in PF6 -, (c) nitrogen in NO2, (d) iodine in ICl3, (e) chlorine in HClO4 (hydrogen is bonded to O).

Chemistry 11
Calculate the number of cations and anions in each of the following compounds: (a) 0.764 g of CsI, (b) \(72.8\ \text{g}\ K_2Cr_2O_7\), (c) \(6.54\ \text{g}\ \text{of}\ Hg_2(NO_3)_2\).

Behavior Modification: Principles and Procedures 6
What is generalization? Why is generalization important in a behavior modification program?

Biochemistry 9
If the amino acids alanine and glycine react to form a peptide bond, is there more than one reaction product? If so, what products?

College Physics: Explore and Apply 2
A 0.62-kg Slinky has 185 coils. When you and your friend stretch the Slinky by exerting a 2.0-N force on its ends, the separation between the adjacent coils is 7 cm. Determine the speed of the transverse wave on the Slinky.