1. Dalton's Atomic Theory. Dalton outlines four general postulates for his atomic theory. Explain briefly any limitations to his postulates -OR- how each of his four postulates may be violated or proven false. (Max 2 sentences or 3 bullet points for each postulate; sometimes a mere mention of some key words will be sufficient to support your case,

1. Dalton's Atomic Theory. Dalton outlines four general postulates for his atomic theory. Explain briefly any limitations to his postulates -OR- how each of his four postulates may be violated or proven false. (Max 2 sentences or 3 bullet points for each postulate; sometimes a mere mention of some key words will be sufficient to support your case,

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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What was the theory of elements believed by ancient philosophers? What do you think led scientists to continue to research the existing theory of the atom? Explain what allowed for the discovery of new elements and changes in atomic theory. ow to attach files
Atomic Theory & Scientists 1. Write the letter of each sentence that is true about Dalton's atomic theory. a. All elements are composed of tiny, indivisible particles called atoms. An element is composed of several types of atoms. b. c. Atoms of different elements can physically mix together, or can chemically combine in simple, whole-number ratios to form compounds. d. Chemical reactions occur when atoms are separated, joined or rearranged; however, atoms of one element are never changed into atoms of another element by a chemical reaction.
An atom has a diameter of 3.00 Å and the nucleus of that atom has a diameter of 7.50 × 10-5 Å. Determine the fraction of the volume of the atom that is taken up by the nucleus. Assume the atom and the nucleus are a sphere. fraction of atomic volume: Calculate the density of a proton, given that the mass of a proton is 1.0073 amu and the diameter of a proton is 1.69 × 10-¹5 m. density: g/cm³
Which of the following ideas is NOT part of Dalton's Atomic Theory? atoms of iron do not turn into atoms of chlorine in a chemical reaction chemical change involves the union, separation or rearrangement of atoms atoms cannot change size during a chemical reaction atoms are destroyed during a chemical reaction atoms of different elements have different weights
The actual mass of a 17 atom is 36.9659 amu. Calculate the mass deficiency (amu/atom) for a 17 Cl atom. 37 Masses of subatomic particles: electron = .00055 amu ; proton =1.0073 amu; neutron 1.0087 amu Enter your three decimal places answer below. Round your answer to 3 decimal places.
Outline Rutherford’s Gold foil experiment, including the observations and conclusions from his experiment.
An atom has a diameter of 2.50 Å and the nucleus of that atom has a diameter of 6.00 x 10-5 Å. Determine the fraction of the volume of the atom that is taken up by the nucleus. Assume the atom and the nucleus are a sphere. fraction of atomic volume: Calculate the density of a proton, given that the mass of a proton is 1.0073 amu and the diameter of a proton is 1.69 × 10-¹5 density: m. g/cm³
According to Dalton's theory, in a sample of iron atoms: [Hint: go back through the statements, applying these choices to see which best matches] O The iron atoms are made up of protons, neutrons and electrons All the iron atoms are identical in size and mass All the iron atoms are identical in size, but can vary slightly in mass The iron atoms can combine with atoms of oxygen in only one whole number ratio of iron to oxygen atoms
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In the laboratory, 2.38g of copper combined with 1.19g of sulfur. In a duplicate experiment, 4.26g of copper combined with 1.80g of sulfur. Are these results in agreement with the law of definite composition?
9. Lithium hydroxide crystals are used in manned space vehicles to remove carbon dioxide gas from the air exhaled by the astronauts. The symbolic equation for this reaction is 2LIOH + CO₂ → Li₂CO3 + H₂O a. The formula and charge of a lithium ion is Lit Deduce the formula and charge of the carbonate ion. Explain your answer. b. A space vehicle carries a crew of 7 astronauts. Each astronaut exhales 18 moles of carbon dioxide every day. Calculate the total number of moles of carbon dioxide that the crew will exhale during a mission into space which lasts 10 days. Show your working. c. Calculate the mass of lithium hydroxide crystals which must be loaded on board the space vehicle to react with all the carbon dioxide exhaled during the mission. Show your working.
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