Summary
Summary Atoms_Molecules_and_Ions
- Course
- Institution
- Book
Atoms_Molecules_and_Ions summary
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
TEST BANK CHEMISTRY – THE CENTRAL SCIENCE 11th EDITION BY BROWN, LEMAY, BURSTEN & MURPHY WOODWARD ALL CHAPTERS INCLUDED 2023/2024.
-
chemistry the central science 14th edition brown LeMay, Bursten, Murphy, Woodward test bank
-
TEST BANK CHEMISTRY – THE CENTRAL SCIENCE 11th EDITION BY BROWN, LEMAY, BURSTEN & MURPHY WOODWARD ALL CHAPTERS INCLUDED 2023/2024.
Seller
Follow
bernicekatako
Content preview
Full file at https://testbankuniv.eu/Chemistry-The-Central-Science-13th-Edition-Brown-Test-BankChemistry: The Central Science, 13e (Brown et al.)
Chapter 2 Atoms, Molecules, and Ions
2.1 Multiple-Choice Questions
1) A molecule of water contains hydrogen and oxygen in a 1:8 ratio by mass. This is a statement of
________.
A) the law of multiple proportions
B) the law of constant composition
C) the law of conservation of mass
D) the law of conservation of energy
E) none of the above
Answer: B
Diff: 2 Var: 1 Page Ref: Sec. 2.1
LO: 2.1
GO: G2
2) Which one of the following is not one of the postulates of Dalton's atomic theory?
A) Atoms are composed of protons, neutrons, and electrons.
B) All atoms of a given element are identical; the atoms of different elements are different and have
different properties.
C) Atoms of an element are not changed into different types of atoms by chemical reactions: atoms are
neither created nor destroyed in chemical reactions.
D) Compounds are formed when atoms of more than one element combine; a given compound always
has the same relative number and kind of atoms.
E) Each element is composed of extremely small particles called atoms.
Answer: A
Diff: 1 Var: 1 Page Ref: Sec. 2.1
LO: 2.1
GO: G2
3) Consider the following selected postulates of Dalton's atomic theory:
(i) Each element is composed of extremely small particles called atoms.
(ii) Atoms are indivisible.
(iii) Atoms of a given element are identical.
(iv) Atoms of different elements are different and have different properties.
Which of the postulates is(are) no longer considered valid?
A) (i) and (ii)
B) (ii) only
C) (ii) and (iii)
D) (iii) only
E) (iii) and (iv)
Answer: C
Diff: 2 Var: 1 Page Ref: Sec. 2.1
LO: 2.1
GO: G2
1
Copyright © 2015 Pearson Education, Inc.
Full file at https://testbankuniv.eu/Chemistry-The-Central-Science-13th-Edition-Brown-Test-Bank
,Full file at https://testbankuniv.eu/Chemistry-The-Central-Science-13th-Edition-Brown-Test-Bank
4) Which pair of substances could be used to illustrate the law of multiple proportions?
A) SO2, H2SO4
B) CO, CO2
C) H2O, O2
D) CH4, C6H12O6
E) NaCl, KCl
Answer: B
Diff: 1 Var: 1 Page Ref: Sec. 2.1
LO: 2.1
GO: G2
5) Which statement below correctly describes the responses of alpha, beta, and gamma radiation to an
electric field?
A) Both beta and gamma are deflected in the same direction, while alpha shows no response.
B) Both alpha and gamma are deflected in the same direction, while beta shows no response.
C) Both alpha and beta are deflected in the same direction, while gamma shows no response.
D) Alpha and beta are deflected in opposite directions, while gamma shows no response.
E) Only alpha is deflected, while beta and gamma show no response.
Answer: D
Diff: 2 Var: 1 Page Ref: Sec. 2.2
LO: 2.2
GO: G2
6) Which one of the following is not true concerning cathode rays?
A) They originate from the negative electrode.
B) They travel in straight lines in the absence of electric or magnetic fields.
C) They impart a negative charge to metals exposed to them.
D) They are made up of electrons.
E) The characteristics of cathode rays depend on the material from which they are emitted.
Answer: E
Diff: 2 Var: 1 Page Ref: Sec. 2.2
LO: 2.2
GO: G2
7) The charge on an electron was determined in the ________.
A) cathode ray tube, by J. J. Thomson
B) Rutherford gold foil experiment
C) Millikan oil drop experiment
D) Dalton atomic theory
E) atomic theory of matter
Answer: C
Diff: 1 Var: 1 Page Ref: Sec. 2.2
LO: 2.2
GO: G2
2
Copyright © 2015 Pearson Education, Inc.
Full file at https://testbankuniv.eu/Chemistry-The-Central-Science-13th-Edition-Brown-Test-Bank
,Full file at https://testbankuniv.eu/Chemistry-The-Central-Science-13th-Edition-Brown-Test-Bank
8) ________-rays consist of fast-moving electrons.
A) Alpha
B) Beta
C) Gamma
D) X
E) none of the above
Answer: B
Diff: 1 Var: 1 Page Ref: Sec. 2.2
LO: 2.2
GO: G2
9) The gold foil experiment performed in Rutherford's lab ________.
A) confirmed the plum-pudding model of the atom
B) led to the discovery of the atomic nucleus
C) was the basis for Thomson's model of the atom
D) utilized the deflection of beta particles by gold foil
E) proved the law of multiple proportions
Answer: B
Diff: 1 Var: 1 Page Ref: Sec. 2.2
LO: 2.2
GO: G2
10) In the Rutherford nuclear-atom model, ________.
A) the heavy subatomic particles, protons and neutrons, reside in the nucleus
B) the three principal subatomic particles (protons, neutrons, and electrons) all have essentially the same
mass
C) the light subatomic particles, protons and neutrons, reside in the nucleus
D) mass is spread essentially uniformly throughout the atom
E) the three principal subatomic particles (protons, neutrons, and electrons) all have essentially the same
mass and mass is spread essentially uniformly throughout the atom
Answer: A
Diff: 1 Var: 1 Page Ref: Sec. 2.2
LO: 2.2
GO: G2
11) Cathode rays are ________.
A) neutrons
B) X-rays
C) electrons
D) protons
E) atoms
Answer: C
Diff: 1 Var: 1 Page Ref: Sec. 2.2
LO: 2.2
GO: G2
3
Copyright © 2015 Pearson Education, Inc.
Full file at https://testbankuniv.eu/Chemistry-The-Central-Science-13th-Edition-Brown-Test-Bank
, Full file at https://testbankuniv.eu/Chemistry-The-Central-Science-13th-Edition-Brown-Test-Bank
12) Cathode rays are deflected away from a negatively charged plate because ________.
A) they are not particles
B) they are positively charged particles
C) they are neutral particles
D) they are negatively charged particles
E) they are emitted by all matter
Answer: D
Diff: 1 Var: 1 Page Ref: Sec. 2.2
LO: 2.2
GO: G2
13) In the absence of magnetic or electric fields, cathode rays ________.
A) do not exist
B) travel in straight lines
C) cannot be detected
D) become positively charged
E) bend toward a light source
Answer: B
Diff: 1 Var: 1 Page Ref: Sec. 2.2
LO: 2.2
GO: G2
14) Of the three types of radioactivity characterized by Rutherford, which is/are electrically charged?
A) -rays
B) -rays and -rays
C) -rays, -rays, and -rays
D) -rays
E) -rays and -rays
Answer: B
Diff: 1 Var: 1 Page Ref: Sec. 2.2
LO: 2.2
GO: G2
15) Of the three types of radioactivity characterized by Rutherford, which is/are not electrically charged?
A) -rays
B) -rays, -rays, and -rays
C) -rays
D) -rays and -rays
E) -rays and -rays
Answer: C
Diff: 1 Var: 1 Page Ref: Sec. 2.2
LO: 2.2
GO: G2
4
Copyright © 2015 Pearson Education, Inc.
Full file at https://testbankuniv.eu/Chemistry-The-Central-Science-13th-Edition-Brown-Test-Bank
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller bernicekatako. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $2.83. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67232 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now