the specific heat of aluminum is 0.900 j/gC. How many joules of heat are absorbed by 15.0 of Al if it is heated from 20.0 C to 60.0C
Compute the freezing point of 21.6 g NiSO4 in 1.00 x 10^2 g H20(assume 100% ionization)
a light woman and a heavy man jump from an airplance at the same time and open their same-size parachutes at the same time. which person will get to a state of zero accerlation first?
How much energy (in calories) is needed to heat 15 of fat from room temperature (25 ) to its melting point (35 )?
By definition, which of the following can be broken down into simpler substances? 1. a. compound 2. b. element 3. c. gas 4. d. liquid
lewis structure for NaNO2
Compounds like CCL2F2 are known as chloroflourocarbons, or CFCs. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be less harmful to the environment. The heat of vaporization of CCl2F2 is 289J/g. What mass of this substance must...
Calculate the final temperature of 36 of ethanol initially at 14 upon absorption of 697 of heat. (density of ethanol =0.789 )
How many copper atoms does it contain? [The volume of a sphere is and the density of copper is 8.96 . A pure copper sphere has a radius 0.927 .
How many significant figures are in 400.1?
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- 1. For organic chemistry, what is a concerted shift? How do things like acids or heat affect them? What other factors affect them?
2. Which of the following reactions is an acid-base neutralization reaction? Why are the rest of the answers incorrect?
- A. AgNo3 (aq) + NaI (aq) --> AgI (s) + NaNO3 (aq)
- B. S8(s) + 8O2 (g) --> 8SO2(g)
- C. Na3PO4 (s) + 2H2O (l) --> H2 (g) + 2NaOH (aq)
- D. Ca (OH)2 (aq) + 2HI (aq) --> CaI2(aq) + 2H2O (l)