Answer: A track is made of a piece of channel iron bent as

Organic Chemistry 8
Problem 26SP Draw a Lewis structure for each compound. Include all nonbonding pairs of electrons. (a) CH3COCH2CHCHCOOH (b) NCCH2COCH2CHO (c) CH2CHCH1OH2CH2CO2H (d) CH2CHC(CH3)CHCOOCH3

Introductory Chemistry 5
Write a neutralization reaction for each acid and base pair. (a) HF(aq) and \(\mathrm{Ba(OH)_2}\)(aq) (b) \(\mathrm{HClO_4}\)(aq) and NaOH(aq) (c) HBr(aq) and \(\mathrm{Ca(OH_2)}\)(aq) (d) HCl(aq) and KOH(aq)

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics 3
Problem 68P 14 g of nitrogen gas at STP are adiabatically compressed to a pressure of 20 atm. What are (a) the final temperature, (b) the work done on the gas, (c) the heat input to the gas, and (d) the compression ratio V max /V min ? (e) Show the process on a pV diagram, using proper scales on bo

Principles of General Chemistry 2
Problem 13P What is an autoionization reaction? Write equations for the autoionization reactions of H2O and of H2SO4.

Biology 8
Most CO2 from catabolism is released during a. glycolysis. b. the citric acid cycle. c. lactate fermentation. d. electron transport. e. oxidative phosphorylation.

Biology 2e by Openstax
Figure 25.6 Which of the following statements about plant divisions is false? a. Lycophytes and pterophytes are seedless vascular plants. b. All vascular plants produce seeds. c. All nonvascular embryophytes are bryophytes. d. Seed plants include angiosperms and gymnosperms.

Principles of Economics 9
A closed economy has income of $1,000, government spending of $200, taxes of $150, and investment of $250. What is private saving? a. $100 b. $200 c. $300 d. $400

Introductory Chemistry: A Foundation 9
If 1000. mL of linseed oil has a mass of 929 g, calculate the density of linseed oil.