Chemistry Chemistry Practice Problems Solutions Library

Atomic Theory Solutions Library

Access 199 Atomic Theory video and text solutions to help you complete your homework. Need to revisit the concept? Watch our Atomic Theory learn videos.

Browse Solutions

199 solutions

Atomic Theory

Q. Part A. Drag protons, neutrons, and electrons from their respective bins onto the area above them to determine how an atom is structured.Match the ...

Solved • Jul 1, 2020

Atomic Theory

Q. Part B. On the basis of Rutherford’s experimental observations, which of the following statements describes the structure of the atom according to ...

Solved • Jul 1, 2020

Atomic Theory

Q. Part A. Watch the animation depicting Rutherford’s experiment and choose which of the following conclusions are correct.The atom is a very compact ...

Solved • Jul 1, 2020

Atomic Theory

Q. Part C. You carefully weigh out 16.00 g of CaCO3 powder and add it to 64.80 g of HCl solution. You notice bubbles as a reaction takes place. You th...

Solved • Jul 1, 2020

Atomic Theory

Q. Part D. Two different compounds are obtained by combining nitrogen with oxygen. The first compound results from combining 46.7 g of N with 53.3 g o...

Solved • Jul 1, 2020

Atomic Theory

Q. Part C. The elements X and Y combine in different ratios to form four different types of compounds: XY, XY2, XY3, and XY4. Consider that there is e...

Solved • Jul 1, 2020

Atomic Theory

Q. Part B. Calculate the ratio of the mass ratio of S to O in SO to the mass ratio of S to O in SO2. Consider a sample of SO in which the mass of S = ...

Solved • Jul 1, 2020

Atomic Theory

Q. What is the chemical formula for quartz?Express your answer as a chemical formula.Matter is made up atoms, but in a real chemistry lab, we measure ...

Solved • Jul 1, 2020

Atomic Theory

Q. Part A. Identify the statements that are correct.For two compounds of C and O, the mass ratio of C to O in one compound is a multiple of the mass r...

Solved • Jul 1, 2020

Atomic Theory

Q. Part B. The law of conservation of mass states that mass is neither created nor destroyed during a chemical reaction. This can be gleaned from the ...

Solved • Jul 1, 2020

Atomic Theory

Q. Part A. Which of the following reactions is possible according to Dalton's atomic theory?A. N2 → O2B. N2 + O2 → 2 NOC. CO2 → NO2D. H2O → H2SAs earl...

Solved • Jul 1, 2020

Atomic Theory

Q. Part B. Samples of three different compounds were analyzed and the masses of each element were determined. CompoundMass NMass OA5.63.2B3.58.0C1.44....

Solved • Jul 1, 2020

Atomic Theory

Q. Part A. There are two different compounds of sulfur and fluorine.In SF6, the mass of fluorine per gram of sulfur is 3.55 g F/g S.In the other compo...

Solved • Jul 1, 2020

Atomic Theory

Q. Part C. A solution of ammonia and water contains 2.20×1025 water molecules and 8.80×1024 ammonia molecules. How many total hydrogen atoms are in th...

Solved • Jul 1, 2020

Atomic Theory

Q. Part B. How many atoms of hydrogen (H) are present in 200 molecules of ammonia (NH3)?Express your answer numerically.Using mass measurements, early...

Solved • Jul 1, 2020

Atomic Theory

Q. Part A. What is the ratio of hydrogen atoms (H) to oxygen atoms (O) in 2 L of water? Enter the simplest whole number ratio in order of hydrogen to ...

Solved • Jul 1, 2020

Atomic Theory

Q. How does Dalton's atomic theory account for the fact that when 1.000 g of water is decomposed into its elements, 0.111 g of hydrogen and 0.889 g of...

Solved • Jun 29, 2020

Atomic Theory

Q. Which statement best captures one of the differences between the law of definite proportions and the law of multiple proportions?(a) The law of def...

Solved • Jun 25, 2020

Atomic Theory

Q. A compound containing only carbon and hydrogen has a carbon-to-hydrogen mass ratio of 11.89.Which carbon-to-hydrogen mass ratio is possible for ano...

Solved • Jun 25, 2020

Atomic Theory

Q. What is Brownian motion? How is it related to the development of the idea that matter is particulate?Match the words in the left column to the appr...

Solved • Jun 25, 2020

Atomic Theory

Q. What are the main ideas in Dalton's atomic theory? How do they help explain the laws of conservation of mass, of constant composition, and of defin...

Solved • Jun 16, 2020

Atomic Theory

Q. Which of the following is NOT part of Dalton's Atomic Theory?A. Each element is composed of tiny indestructible particles called atoms.B. Atoms com...

Solved • Jun 15, 2020

Atomic Theory

Q. Why do chemical equations need to be balanced?

Solved • Jun 15, 2020

Atomic Theory

Q. Dalton's Atomic Theory states:A. that all elements have several isotopesB. that matter is composed of small indestructible particlesC. that the pro...

Solved • Sep 15, 2019

Atomic Theory

Q. The statement, "In a chemical reaction, matter is neither created nor destroyed" is called:A. the Law of Conservation of MassB. Dalton's Atomic The...

Solved • Sep 15, 2019

Atomic Theory

Q. “In a chemical reaction, matter is neither created nor destroyed” is calleda. the Law of Definite Proportions.b. the Scientific Method.c. the Law o...

Solved • Sep 15, 2019

Atomic Theory

Q. Which of the following statements is FALSE according to Dalton's Atomic Theory?A) One carbon atom will combine with one oxygen atom to form a molec...

Solved • Sep 12, 2019

Atomic Theory

Q. Methane reacts with oxygen in a Bunsen burner.Are the same number of each type of atom present as products?

Solved • Oct 31, 2018

Atomic Theory

Q. 1.00 g of C4H10 reacts with 3.59 g of O2 to form 3.03 g of CO2.Using only addition and subtraction, calculate the amount of H2O produced.

Solved • Oct 31, 2018

Atomic Theory

Q. How many atoms of Mg, O, and H are represented by the notation 3 formula units Mg(OH)2?

Solved • Oct 31, 2018

Atomic Theory

Q. Consider CH4.Does the formula contain more than one type of atom?a) No b) Yes c) This is not a valid question for CH4

Solved • Oct 31, 2018

Atomic Theory

Q. Determine the number of each type of atom in each formula:Ba(OH)2

Solved • Oct 31, 2018

Atomic Theory

Q. Determine the number of each type of atom in each formula:NH4Cl

Solved • Oct 31, 2018

Atomic Theory

Q. Determine the number of each type of atom in each formula:NaCNA) 1 sodium atom, 1 carbon atom and 2 nitrogen atoms. B) 1 sodium atom, 2 carbon atom...

Solved • Oct 31, 2018

Atomic Theory

Q. Determine the number of each type of atom in each formula:Ba(HCO3)2

Solved • Oct 31, 2018

Atomic Theory

Q. A mixture of 56.0 g of S and 1.06×102 g of Cl2 reacts completely to form S2Cl2 and SCl2.Find the mass of S2Cl2 formed.

Solved • Oct 31, 2018

Atomic Theory

Q. The chloride of an unknown metal is believed to have the formula MCl3. A 1.891 g sample of the compound is found to contain 3.606 x 10 - 2  mol Cl....

Solved • Oct 31, 2018

Atomic Theory

Q. Write a ratio showing the relationship between the amounts of each element for each of the following:Part (a):A) 3O:C B) 2O:C C) O:C D) O:2C

Solved • Oct 31, 2018

Atomic Theory

Q. Write a ratio showing the relationship between the amounts of each element for each of the following:(b) A) 2H:OB) 2H:2O C) 3H:OD) H:2O

Solved • Oct 31, 2018

Atomic Theory

Q. Write a ratio showing the relationship between the amounts of each element for each of the following:(c)A) 2H:O B) 3H:O  D) 2H:2O 

Solved • Oct 31, 2018

Atomic Theory

Q. Write a ratio showing the relationship between the amounts of each element for each of the following: (a)A) 2H:OB) 3H:OC) 2H:2OD) H:2O

Solved • Oct 31, 2018

Atomic Theory

Q. Write a ratio showing the relationship between the amounts of each element for each of the following: (b)A) H:2C B) H:4CC) 4H:C D) 2H:C

Solved • Oct 31, 2018

Atomic Theory

Q. Write a ratio showing the relationship between the amounts of each element for each of the following: (c)A) 6H:2C:OB) 4H:C:OC) 3H:2C:OD) 6H:C:O

Solved • Oct 31, 2018

Atomic Theory

Q. Determine the number of each type of atom in each formula:Ca3(PO4)2

Solved • Oct 31, 2018

Atomic Theory

Q. Determine the number of each type of atom in each formula:SrCl2

Solved • Oct 31, 2018

Atomic Theory

Q. Determine the number of each type of atom in each formula:KNO3a) 3 potassium atoms, 3 nitrogen atoms and 3 oxygen atoms. b) 1 potassium atom, 3 nit...

Solved • Oct 31, 2018

Atomic Theory

Q. Determine the number of each type of atom in each formula:Mg(NO2)2

Solved • Oct 31, 2018

Atomic Theory

Q. The molecular formula for water is H2O. Which ratio can be correctly derived from this formula?

Solved • Oct 31, 2018

Atomic Theory

Q. In methane, one part hydrogen combines with three parts carbon by mass.If a sample of a compound containing only carbon and hydrogen contains 32.0 ...

Solved • Oct 25, 2018

Atomic Theory

Q. In borane, one part hydrogen combines with 3.6 parts boron by mass. A compound containing only hydrogen and boron contains 6.0 g of hydrogen and 43...

Solved • Oct 25, 2018

Atomic Theory

Q. Ammonia (NH3) and hydrazine (N2H4) are both compounds of nitrogen and hydrogen.Based on the law of multiple proportions, how many grams of hydrogen...

Solved • Oct 25, 2018

Atomic Theory

Q. Benzene, ethane, and ethylene are just three of a large number of hydrocarbons-compounds that contain only carbon and hydrogen. Show how the follow...

Solved • Oct 25, 2018

Atomic Theory

Q. Ammonia ( NH3  ) and hydrazine ( N2 H4  ) are both binary compounds of nitrogen and hydrogen.Based on the law of multiple proportions, how many gra...

Solved • Oct 25, 2018

Atomic Theory

Q. Compounds A and B are colorless gases obtained by combining sulfur with oxygen. Compound A results from combining 6.00 g of sulfur with 5.99 g of o...

Solved • Oct 25, 2018

Atomic Theory

Q. Compounds A and B are colorless gases obtained by combining sulfur with oxygen. Compound A results from combining 6.00g of sulfur with 5.99 g of ox...

Solved • Oct 25, 2018

Atomic Theory

Q. Compounds A and B are colorless gases obtained by combining sulfur with oxygen. Compound A results from combining 6.00 g of sulfur with 5.99 g of o...

Solved • Oct 25, 2018

Atomic Theory

Q. Compounds A and B are colorless gases obtained by combining sulfur with oxygen. Compound A results from combining 6.00g of sulfur with 5.99 g of ox...

Solved • Oct 25, 2018

Atomic Theory

Q. Hydrogen sulfide is composed of two elements: hydrogen and sulfur. In an experiment, 6.700 g of hydrogen sulfide is fully decomposed into its eleme...

Solved • Oct 25, 2018

Atomic Theory

Q. A 2.3-g sample of carbon dioxide (CO2) is fully decomposed into its elements, yielding 0.628 g of carbon and 1.67 g of oxygen.What is the ratio of ...

Solved • Oct 25, 2018

Atomic Theory

Q. A 2.3-g sample of carbon dioxide (CO2) is fully decomposed into its elements, yielding 0.628 g of carbon and 1.67 g of oxygen.If a sample of a diff...

Solved • Oct 25, 2018

Atomic Theory

Q. A 2.3-g sample of carbon dioxide (CO2) is fully decomposed into its elements, yielding 0.628 g of carbon and 1.67 g of oxygen.  A sample of a diffe...

Solved • Oct 25, 2018

Atomic Theory

Q. A sample of ascorbic acid (vitamin C) is synthesized in the laboratory. It contains 1.50 g of carbon and 2.00 g of oxygen. Another sample of ascorb...

Solved • Oct 25, 2018

Atomic Theory

Q. When carbon and oxygen react, two different compounds can form depending on the conditions.   Compound A contains 1.836 g of oxygen per gram of car...

Solved • Oct 25, 2018

Atomic Theory

Q. When carbon and oxygen react, two different compounds can form depending on the conditions.Compound A contains 1.836 g of oxygen per gram of carbon...

Solved • Oct 25, 2018

Atomic Theory

Q. How many hydrogen atoms are in each of the following:Ca(C2H5COO)2

Solved • Oct 25, 2018

Atomic Theory

Q. The diameter of a rubidium atom is 4.95 Å. We will consider two different ways of placing the atoms on a surface. In arrangement (a), all the atoms...

Solved • Oct 25, 2018

Atomic Theory

Q. The diameter of a rubidium atom is 4.95 Å. We will consider two different ways of placing the atoms on a surface. In arrangement (a), all the atoms...

Solved • Oct 25, 2018

Atomic Theory

Q. A chemist finds that 30.82 g of nitrogen will react with 17.60 g, 35.20 g, 70.40 g, or 88.00 g of oxygen to form four different compounds.Calculate...

Solved • Oct 25, 2018

Atomic Theory

Q. A chemist finds that 30.82 g of nitrogen will react with 17.60 g, 35.20 g, 70.40 g, or 88.00 g of oxygen to form four different compounds. Calculat...

Solved • Oct 25, 2018

Atomic Theory

Q. A chemist finds that 30.82 g of nitrogen will react with 17.60 g, 35.20 g, 70.40 g, or 88.00 g of oxygen to form four different compounds.Calculate...

Solved • Oct 25, 2018

Atomic Theory

Q. A chemist finds that 30.82 g of nitrogen will react with 17.60 g, 35.20 g, 70.40 g, or 88.00 g of oxygen to form four different compounds.Calculate...

Solved • Oct 25, 2018

Atomic Theory

Q. A chemist finds that 30.82 g of nitrogen will react with 17.60 g, 35.20 g, 70.40 g, or 88.00 g of oxygen to form four different compounds.Calculate...

Solved • Oct 25, 2018

Atomic Theory

Q. In a series of experiments, a chemist prepared three different compounds that contain only iodine and fluorine and determined the mass of each elem...

Solved • Oct 25, 2018

Atomic Theory

Q. In a series of experiments, a chemist prepared three different compounds that contain only iodine and fluorine and determined the mass of each elem...

Solved • Oct 25, 2018

Atomic Theory

Q. In a series of experiments, a chemist prepared three different compounds that contain only iodine and fluorine and determined the mass of each elem...

Solved • Oct 25, 2018

Atomic Theory

Q. In a series of experiments, a chemist prepared three different compounds that contain only iodine and fluorine and determined the mass of each elem...

Solved • Oct 25, 2018

Atomic Theory

Q. What submicroscopic particles are the building blocks of matter?

Solved • Oct 25, 2018

Atomic Theory

Q. Hydrogen and oxygen form both water and hydrogen peroxide. A decomposition of a sample of water forms 0.125 g hydrogen to every 1.00 g oxygen. The ...

Solved • Oct 25, 2018

Atomic Theory

Q. What is Brownian motion? How is it related to the development of the idea that matter is particulate?

Solved • Oct 25, 2018

Atomic Theory

Q. Two samples of carbon monoxide are decomposed into their constituent elements. One sample produces 17.2 g of oxygen and 12.9 g of carbon, and the o...

Solved • Oct 25, 2018

Atomic Theory

Q. Upon decomposition, one sample of magnesium fluoride produces 1.66 kg of magnesium and 2.58 kg of fluorine. A second sample produces 1.32 kg of mag...

Solved • Oct 25, 2018

Atomic Theory

Q. An automobile gasoline tank holds 23 kg of gasoline. When the gasoline burns, 84 kg of oxygen is consumed, and carbon dioxide and water are produce...

Solved • Oct 25, 2018

Atomic Theory

Q. Which of the following is an example of Law of Multiple Proportions? Explain.(a) Two different samples of water are found to have the same ratio of...

Solved • Oct 25, 2018

Atomic Theory

Q. Two samples of a compound containing elements A and B are decomposed. The first sample produces 15 g of A and 35 g of B.The second sample produces ...

Solved • Oct 25, 2018

Atomic Theory

Q. Sulfur and oxygen form both sulfur dioxide and sulfur trioxide. When samples of these are decomposed, the sulfur dioxide produces 3.50 g oxygen and...

Solved • Oct 25, 2018

Atomic Theory

Q. Sulfur and oxygen form both sulfur dioxide and sulfur trioxide. When samples of these are decomposed, the sulfur dioxide produces 3.50 g oxygen and...

Solved • Oct 25, 2018

Atomic Theory

Q. Sulfur and oxygen form both sulfur dioxide and sulfur trioxide. When samples of these are decomposed, the sulfur dioxide produces 3.50 g oxygen and...

Solved • Oct 25, 2018

Atomic Theory

Q. When a small log completely burns in a campfire, the mass of the ash is much less than the mass of the log.What happens to the matter that composed...

Solved • Oct 25, 2018

Atomic Theory

Q. Two samples of carbon tetrachloride were decomposed into their constituent elements. One sample produced 38.9 g of carbon and 451 g of chlorine, an...

Solved • Oct 25, 2018

Atomic Theory

Q. Two samples of carbon tetrachloride were decomposed into their constituent elements. One sample produced 38.9 g of carbon and 451 g of chlorine, an...

Solved • Oct 25, 2018

Atomic Theory

Q. Two samples of sodium chloride were decomposed into their constituent elements. One sample produced 6.51 g of sodium and 10.0 g of chlorine, and th...

Solved • Oct 25, 2018

Atomic Theory

Q. The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride produced 25.7 g of sodium upon decomposition.How muc...

Solved • Oct 25, 2018

Atomic Theory

Q. Palladium forms three different compounds with sulfur. The mass of sulfur per gram of palladium in each compound is listed below:CompoundGrams S pe...

Solved • Oct 25, 2018

Atomic Theory

Q. Palladium forms three different compounds with sulfur. The mass of sulfur per gram of palladium in each compound is listed below:CompoundGrams S pe...

Solved • Oct 25, 2018

Atomic Theory

Q. The ratio of the mass of O to the mass of N in N2O3 is 12:7. Another binary compound of nitrogen has a ratio of O to N of 16:7.What is its formula?

Solved • Oct 25, 2018

Atomic Theory

Q. The ratio of the mass of O to the mass of N in N2O3 is 12:7. Another binary compound of nitrogen has a ratio of O to N of 16:7.What is the ratio of...

Solved • Oct 25, 2018

Atomic Theory

Q. A compound containing only carbon and hydrogen has a carbon-to-hydrogen mass ratio of 11.89.Which carbon-to-hydrogen mass ratio is possible for ano...

Solved • Oct 25, 2018

Atomic Theory

Q. The ratio of oxygen to nitrogen by mass in NO2 is 2.29. The ratio of fluorine to nitrogen by mass in NF3 is 4.07.Find the ratio of oxygen to fluori...

Solved • Oct 25, 2018

Atomic Theory

Q. A 7.74 g sample of HCN is found to contain 0.287 g of H and 4.01 g of N.Find the mass of carbon in a sample of HCN with a mass of 3.43 g.

Solved • Oct 25, 2018

Atomic Theory

Q. The ratio of sulfur to oxygen by mass in SO2 is 1.0:1.0.Find the ratio of sulfur to oxygen by mass in SO3.

Solved • Oct 25, 2018