Chemistry, 14.07.2019 22:00 emily200705
7g of gold is heated from 17 degrees c to 42 degrees c. how much energy (heat) was used? the specific heat capacity of gold is .031cal/gc.
Answers: 1
Chemistry, 22.06.2019 15:00, levelebeasley1
Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.
Answers: 2
Chemistry, 22.06.2019 19:00, innocentman69
How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next
Answers: 1
Chemistry, 23.06.2019 09:00, payshencec21
How many grams of ammonia are produced when 1.0 mole of nitrogen reacts
Answers: 2
7g of gold is heated from 17 degrees c to 42 degrees c. how much energy (heat) was used? the specif...
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