Answer: How far apart would parallel pennies have to be to

Introductory Chemistry 5
Predict the products of each reaction. (a) \(\mathrm {HI}(aq)+\mathrm {Al}(s) \longrightarrow\) (b) \(\mathrm {H_2SO_4}(aq)+\mathrm {TiO_2}(s) \longrightarrow\) (c) \(\mathrm {H_2CO_3}(aq)+\mathrm {LiOH}(aq) \longrightarrow\)

An Introduction to Thermal Physics 1
Problem 16P Suppose you flip 1000 coins. a) What is the probability of getting exactly 500 heads and 500 tails? (Hint: First write down a formula for the total number of possible outcomes. Then, to determine the multiplicity of the 500-500 macrostate, use Stirlings approximation. If you have a fancy

Microbiology: An Introduction 11
Using the following information, create a dichotomous key for distinguishing these unicellular organisms. Which cause human disease?

Organic Chemistry 9
Dimethylamine, (CH3)2NH, has a molecular weight of 45 and a boiling point of 7.4 C. Trimethylamine, (CH3)3N, has a higher molecular weight (59) but a lower boiling point (3.5 C). Explain this apparent discrepancy.

Anatomy & Physiology 1
Identify the four components of a negative feedback loop and explain what would happen if secretion of a body chemical controlled by a negative feedback system became too great.

Biology: The Unity and Diversity of Life 15
What are the base-pairing rules for DNA? a. AG, TC b. AT, GC c. AC, TG d. AA, GG, CC, TT

Psychology 1
What is egocentrism? Provide an original example.

Psychology 1
Two forms of associative learning are ________ and ________. a. classical conditioning; operant conditioning b. classical conditioning; Pavlovian conditioning c. operant conditioning; observational learning d. operant conditioning; learning conditioning