Introduction to Chemistry 4th Edition by Rich Bauer-Test Bank

Test Bank For Overview of Chemistry 4th Ed by Wealthy Bauer

ISBN-10:0073523003 , ISBN-13:978-0073523002

Chapter 02 Test Bank: Atoms, Ions, and the Periodic Desk
Pupil: ________________________________________________________

1. Among these had been taken into account as the components by the early Greeks?
A. earth, wind, and hearth
B. earth, air, hearth, and water
C. carbon, hydrogen, and oxygen
D. solar, sand, and water
E. none of these

2. The subsequent remarks regarding atoms and atomic theory are incorrect?
A. “Atomos” is a Greek term synonymous with unbreakable.
B. Democritus, a Greek scholar, assumed that matter could be disintegrated into infinitely small units.
C. The ancient Greeks assumed that all matter consists of 4 elements: earth, air, fire, and water.
D. An element is a substance that cannot be decomposed into simpler substances.
E. By the 1700s, all scientists believed that elements were made up of atoms.

3. The following statements concerning atoms and atomic theory are incorrect?
A. Antoine Lavoisier discovered in the late 1700s that matter is neither created nor destroyed in a chemical reaction.
B. Joseph Proust confirmed that when elements combine to form new substances, they do so in specific mass ratios.
C. According to the law of multiple proportions, when water forms, the mass ratio of hydrogen to oxygen is fixed.
D. John Dalton’s atomic theory contradicted the ideas about matter proposed by the ancient Greek philosophers.
E. The Greek philosophers did not carry out experiments to support their ideas.

4. The diagram illustrates a molecular-level representation of the chemical reaction between hydrogen and nitrogen to form ammonia. What is incorrect about this diagram?

A. The products contain more nitrogen atoms than the reactants.
B. The products contain more hydrogen atoms than the reactants.
C. The number of reactant molecules should equal the number of product molecules.
D. The products should contain some unreacted hydrogen.
E. The product ammonia molecules should have only two hydrogen atoms attached to the nitrogen.

5. Which of the following elements is not among the three most abundant elements in the human body?
A. carbon
B. oxygen
C. iron
D. hydrogen

6. Which of the following statements is inaccurate?
A. The human body consists of about 99% carbon, hydrogen, and oxygen.
B. Essential minerals are derived from the food we consume.
C. Most of the essential minerals in our diet are classified as metals on the periodic table.
D. Minerals are vital for the growth and formation of bones, teeth, blood, etc.
E. Magnesium is a component of hemoglobin, which transports oxygen in our blood.

7. Which of the following observations does not specifically relate to the law of definite proportions?
A. Pure water comprises oxygen and hydrogen in a mass ratio of 8 to 1.
B. Any sample of a given compound always contains the same proportions by mass of the constituent elements.
C. The mass of the products of a chemical reaction equals the mass of the reactants of the reaction.
D. When a metal reacts with oxygen, the oxygen content of the products is fixed at one or two values.
E. When water is decomposed into its constituents by electrolysis, elemental oxygen and hydrogen are formed in an 8 to 1 mass ratio.

8. Which of the following is not part of Dalton’s atomic theory?
A. All matter consists of small indivisible particles called atoms.
B. All atoms of a particular element have the same mass and chemical properties.
C. Atoms of one element can be transformed into atoms of another element in a chemical reaction.
D. Atoms combine in whole-number ratios to form compounds.
E. Chemical reactions involve a rearrangement of the atoms in the reactants.

9. Which of the following statements concerning atomic theory is inaccurate?
A. John Dalton’s experimental findings led to the law of conservation of mass.
B. Antoine Lavoisier’s experiments demonstrated that the mass of the products of a chemical reaction equals the mass of the reactants.
C. When wood undergoes combustion, the ashes weigh less than the original wood, but this does not violate the law of conservation of matter.
D. Dalton’s atomic theory states that a chemical reaction is a rearrangement of atoms into different chemical compounds.
E. Joseph Proust’s discoveries regarding the reactions between metals and oxygen resulted in the law of definite proportions.

10. Dalton’s atomic theory included all the following assertions except
A. Elements are comprised of indivisible particles called atoms.
B. Atoms of different elements possess different characteristics.
C. The volumes of gases that combine are in small whole-number ratios.
D. Atoms combine in fixed ratios of whole numbers when forming compounds.
E. In chemical reactions, atoms are not generated or annihilated.

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