A 0.250-kg aluminum bowl holding 0.800 kg of soup at

Biology 8
Some bacteria are metabolically active in hot springs because a. they are able to maintain a lower internal temperature. b. high temperatures make catalysis unnecessary. c. their enzymes have high optimal temperatures. d. their enzymes are completely insensitive to temperature. e. they use molecules

Organic Chemistry, 9
Give the structures and IUPAC names of all the C5H11 alkyl groups, and identify them as primary, secondary, or tertiary, as appropriate. Sample Solution Consider the alkyl group having the same carbon skeleton as (CH3)4C. All the hydrogens are equivalent; replacing any one of them by a potential poin

Organic Chemistry, 9
Given the following partial structure, add a substituent X to C-1 so that it satisfies the indicated stereochemical requirement What is the ACCX torsion (dihedral) angle in each? (a) Anti to A (c) Anti to C-3 A 3 1 (b) Gauche to A (d) Gauche to C-3

Organic Chemistry, 9
Hydride reduction (with LiAlH4 or NaBH4) of each of the following ketones has been reported in the chemical literature and gives a mixture of two diastereomeric alcohols in each case. Give the structures of both alcohol products for each ketone. (a) (S)-3-Phenyl-2-butanone (b) 4-tert-Butylcyclohexano

Campbell Biology 10
How is photosynthesis similar in C4 plants and CAM plants? a. In both cases, only photosystem I is used. b. Both types of plants make sugar without the Calvin cycle. c. In both cases, rubisco is not used to fix carbon initially. d. Both types of plants make most of their sugar in the dark.

Urban Economics 8
Consider the example shown in Figure 21 , with the martini-glass shape showing the net price of the factory product. Suppose all consumers switch to spring-loaded sneakers, decreasing walking time per round-trip mile from 1/12 hours to 1/18 hours. a. The slope of the net-price curve changes to _____

Urban Economics 8
Integration and Segregation Consider a city of 200 people (100 tall and 100 short) and two neighborhoods (100 people in each). People generally prefer to live close to short people. To draw the rent-premium curves, put the number of short people in neighborhood A (from 50 to 100) on the horizontal ax

Introductory Chemistry: A Foundation 9
A widely used weather instrument called a barometer can be built from a long, thin tube of glass that is sealed at one end. The tube is completely filled with mercury and then inverted into a small pool of mercury. The level of the mercury inside the tube drops initially but then stabilizes at some h