Answer: Decomposition reactions are usually endothermic,

Introductory Chemistry 5
Problem 90P How much 0.200 M KOH is required to completely neutralize 25.0 mL of 0.150 M HClO4?

Biology 8
Which ofthe following animals is incorrectly paired with its feeding mechanism? a. lion-substrate feeder b. baleen whale-suspension feeder c. aphid-tluid feeder d. clam-suspension feeder e. snake-bulk feeder

Anatomy & Physiology 1
The smallest unit of an element that still retains the distinctive behavior of that element is an ________. a. electron b. atom c. elemental particle d. isotope

Principles of Economics 6
Why is frictional unemployment inevitable? How might the government reduce the amount of frictional unemployment?

Plant Systematics 3
What is phylogenetic systematics and what are its goals?

Psychology 5
The apparently altruistic behavior of non-human animals can often be explained by a. kin selection. b. obedience. c. informational influence. d. cognitive dissonance.

Urban Economics 8
U-Read and Blockbuster Books? Why do we have public libraries? Why dont people rent books from fi rms, just as they rent trucks, roto tillers, and DVDs? We have U-Haul, so why not U-Read? We have Netfl ix, so why not Netbooks?

Chemistry for today : general, organic, and biochemistry 9
A 2.50-L sample of neon at \(0.00^{\circ} \mathrm{C}\) and 1.00 atm is compressed into a 0.75-L cylinder. What pressure will the gas exert in the cylinder at \(30 .{ }^{\circ} \mathrm{C}\)?