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Test Bank For Chemistry An Atoms First Approach, 3rd Edition Steven S. Zumdahl (Author), Susan A. Zumdahl (Author), Donald J. DeCoste (Author) ALL CHAPTERS COVERED $15.99
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Test Bank For Chemistry An Atoms First Approach, 3rd Edition Steven S. Zumdahl (Author), Susan A. Zumdahl (Author), Donald J. DeCoste (Author) ALL CHAPTERS COVERED
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Test Bank For Chemistry An Atoms First Approach, 3rd Edition Steven S. Zumdahl (Author), Susan A. Zumdahl (Author), Donald J. DeCoste (Author) ALL CHAPTERS COVERED

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  • September 25, 2024
  • 27
  • 2024/2025
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  • test bank for chemistry an atoms

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Test Bank For Chemistry An Atoms




· Which of the following particles has a positive charge?

 · A) Electron
 B) Neutron
 C) Proton
 D) Photon
Answer: C) Proton

· What is the main idea behind the atomic theory proposed by Dalton?

 · A) Atoms are indivisible and indestructible.
 B) Atoms can change into different elements.

,  C) Atoms are composed of smaller subatomic particles.
 D) Atoms have a uniform density.
Answer: A) Atoms are indivisible and indestructible.

· In the periodic table, elements are arranged by increasing:

 · A) Mass number
 B) Atomic mass
 C) Atomic number
 D) Valence electrons
Answer: C) Atomic number

· Which of the following is true about isotopes?

 · A) They have the same number of protons but different numbers of
electrons.
 B) They have the same mass number but different atomic numbers.
 C) They have the same number of neutrons but different atomic masses.
 D) They have the same number of protons but different numbers of
neutrons.
Answer: D) They have the same number of protons but different numbers of
neutrons.

· What type of bond is formed between two atoms that share electrons?

 · A) Ionic bond
 B) Metallic bond
 C) Covalent bond
 D) Hydrogen bond
Answer: C) Covalent bond

· Which of the following statements is true about chemical reactions?

 · A) Atoms are created and destroyed during a chemical reaction.
 B) The mass of the reactants is always equal to the mass of the products.

,  C) Energy is released only in exothermic reactions.
 D) Reactions can occur without any energy change.
Answer: B) The mass of the reactants is always equal to the mass of the
products.

· Which of the following is an example of a physical change?

 · A) Rusting of iron
 B) Burning wood
 C) Dissolving sugar in water
 D) Decomposing food
Answer: C) Dissolving sugar in water

· The pH scale measures:

 · A) Concentration of hydroxide ions
 B) Concentration of hydronium ions
 C) Ionic strength of a solution
 D) Total mass of solute in a solution
Answer: B) Concentration of hydronium ions

· What is the primary factor that determines the rate of a chemical reaction?

 · A) Temperature
 B) Pressure
 C) Concentration of reactants
 D) All of the above
Answer: D) All of the above

· In a balanced chemical equation, the coefficients represent:

 · A) The mass of each substance
 B) The number of atoms of each element
 C) The relative amounts of reactants and products

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