Physical Science
Hello, Can soeone tell me if I have the correct answer? Thank You, My answer- A In a nuclear reaction energy is released by the combination of two elements into a new element. This process is an example of- A. Nuclear Fusion B. Nuclear Fission
Physical Science
Hello, Do I have the right answer? my answer D Thank You, In the chemical equation Zn+2HCL -> ZnCI2 + H2, the reactants are A: zinc chloride and hydrogen B: zinf and hydrogen carbonate C: zinc chlorate and water D: zinc and hydrochloric acid
Physical Science
Hello, In the following question can someone please tell me if I have the correct answer? Thank You My answer: B The Molecular Mass of Sodium Oxide (Na2O) is- A.38.98917 B.61.97894
Physical Science
Hello, Can some one please tell me if B is the correct answer? Thank You Which one of the following groups of chemical compounds is composed entirely of organic compounds? A. C2H4O, CH2O, CaSO4, C3H5(OH)3 B. C6H6, C2H5OH, C6H5CH3, C3H5(NO3)3 C. C2H2, CH4, CaCl2, CaCN2 D. Ch3OC...
Physical Science
Yes, but I was asked if I had what number I calculated the coal with in the problem... 0.314 Though, Thanks for the help
Physical Science
Hello, Can some one tell me if I came to the correct answer... Thank You For coal- 0.314 How much heat energy is required to raise the temperature of 5 kilograms of coal from 20 degrees celsius to 220 degrees celcius? my answer: 1,314,718 J
Physical Science
Hello, Can some one tell me if I came to the correct answer... Thank You How much heat energy is required to raise the temperature of 5 kilograms of coal from 20 degrees celsius to 220 degrees celcius? my answer: 1,314,718 J
Physical Science
Hello, I wanted to know if I came to the correct answer in the following problem... Thank You I used: I=LK(To-Tf) LD=L-I A silver bar 0.125 meter long is subjected to a temperature change from 200 degrees celsius to 100 degrees celsius. What will be the length of the bar after...
Physical Science
I need help with the following question... Thank You One degree celsius indicates the same temperature change as... one degree fahrenheit one kevin 5/9 degree fahrenheit 9/5 kelvin
Physical Science
Hello, Can you tell me if I have the correct answer? Thank You How much heat is required to convert 0.3 kilogram of ice at 0 degrees celsius to water at the same temperature? My answer: 100,375 J
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