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Atomic Theory

Q. Energy states of atoms containing more than one electron are influenced by nucleus-electron and electron-electron interactions. Which of the following statements correctly describes these effects? Answer: Larger nuclear charge lowers energy, more electrons in an orbital increases energy question: could I get an explanation on why that's the answer?

Solved • Sep 14, 2019

Atomic Theory

Q. 16.) Which experiment disproved the “plum pudding” model of the atom. A. cathode ray deflection B. Rutherford’s gold foil C. Millikan’s oil drop D. Dalton’s atomic theory E. bromine

Solved • Sep 14, 2019

Atomic Theory

Q. James Dalton analyzes two compounds in his lab. One contains 42.9% carbon and 57.1% oxygen. The other compound contains 27.3% carbon and 72.7% oxygen. Do these two compounds support his Law of multiple proportions? Hint: Convert the percentages to grams and then figure out the grams of the oxygen per gram of carbon for each compound. Finally compare the ratio of the grams of oxygen between the two compounds.

Solved • Sep 13, 2019

Atomic Theory

Q. Nitrous oxide, N2O , has a mass ratio of nitrogen to oxygen of 1.00 : 0.57. Determine the ratio by mass of nitrogen to oxygen in dinitrogen trioxide, N2O3 , and dinitrogen pentoxide, N2O5 .

Solved • Sep 12, 2019

Atomic Theory

Q. When Sample A of methane, CH4, decomposes, it produces 35.0 grams of C and 2.04 grams of H. When Sample B of CH4 decomposes, it produces 23.0 grams of C. What mass of H is produced by Sample B?

Solved • Sep 10, 2019

Atomic Theory

Q. Sample of three different compounds. But how do I get the whole number for multiple proportion. For e.g in compound A the ratio of N:O= 1: 0.5714. How do I get a whole number for this?

Solved • Sep 8, 2019

Atomic Theory

Q. Identify the statements that are correct. Check all that apply. View Available Hint(s) Check all that apply. For two compounds of C and O, the mass ratio of C to O in one compound is a multiple of the mass ratio of C to O in the other compound. The mass ratio of oxygen to carbon in CO is twice the mass ratio of oxygen to carbon in CO2. The mass ratio of oxygen to carbon in CO2 is 2.667 for every sample of CO2. The mass ratio of oxygen to carbon in CO is 1.33 for every sample of CO.

Solved • Sep 2, 2019