List the symbol and atomic number of each element.(a) boron(b) neon(c) silver(d)

Introductory Chemistry 5
A backpacker wants to carry enough fuel to heat 2.5 kg of water from \(25\ ^{\circ}\mathrm{C}\) to \(100.0\ ^{\circ}\mathrm{C}\). If the fuel she carries produces 36 kJ of heat per gram when it burns, how much fuel should she carry? (For the sake of simplicity, assume that the transfer of heat is 100

Introductory Chemistry 5
To what volume should you dilute 25 mL of a 12 M stock HCl solution to obtain a 0.500 M HCl solution?

College Physics 1
Problem 40PE (a) A world record was set for the mens 100-m dash in the 2008 Olympic Games in Beijing by Usain Bolt of Jamaica. Bolt coasted across the finish line with a time of 9.69 s. If we assume that Bolt accelerated for 3.00 s to reach his maximum speed, and maintained that speed for the rest

Fundamentals of Physics: 9
A bead with mass 1.8 X 10-2 kg is moving along a wire in the positive direction of an x axis. Beginning at time t = 0, when the bead passes through x = 0 with speed 12 mis, a constant force acts on the bead. Figure 7-22 indicates the bead's position at these four times: to = 0, t1 = 1.0 s, t2 = 2.0 s

Myers' Psychology for AP 2
Which phrase best describes the concept of phonemes? a. Units of meaning in a language b. A form of syntax c. The basis of grammar d. Units of sound in a language e. A form of telegraphic speech

Biology 8
Cyanide binds with at least one molecule involved in producing ATP. If a cell is exposed to cyanide, most ofthe cyanide would be found within the a. mitochondria. b. ribosomes. c. peroxisomes d. lysosomes. e. endoplasmic reticulum

Krugman's Economics for AP® (High School) 2
Indicate the effect of each of the following on real GDP: a. Chevrolet increases its production of Corvettes. b. Consumer expenditures increase as a result of inflation. c. $50 billion is spent on hurricane clean up. d. Citizens spend 10,000 hours as neighbourhood watch volunteers.

Biology: The Dynamic Science 5
Which sense involves the greatest number of different receptor proteins in terrestrial animals? a. vision b. somatosensation c. hearing d. gustation e. olfaction