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Category > Chemistry Posted 13 Feb 2024 My Price 8.00

Chemistry Principles EHS Unit 3 Quiz

Question 1

1 / 1 pts

The __________ shell is the outermost occupied shell of electrons in an atom.

 

  crystallized 

  valence 

  hybridized 

  core 

 

Question 2

1 / 1 pts

In Lewis electron dot structures, each valence electron is represented by __________.

 

  a single dot 

  the s orbital 

  a p block 

  three lines 

 

Question 3

1 / 1 pts

The __________ theory states that a molecule will adjust its shape so that the valence electron pairs stay as far apart from each other as possible.

 

  VSEPR 

  Hybridization 

  Octet 

  Valence bond 

 

Question 4

1 / 1 pts

In __________ bonds, atoms share two electrons.

 

  lone 

  ionic 

  metallic 

  double 

 

Question 5

1 / 1 pts

Some metals are __________ which means that they can be stretched, bent, or twisted without breaking.

 

  ductile 

  tough 

  shiny 

  strong 

 

Question 6

1 / 1 pts

__________ orbitals are obtained when at least two nonequivalent orbitals from the same atom combine in preparation for bond formation.

 

  Hybrid 

  Molecular 

  Sigma 

  Lone 

 

Question 7

1 / 1 pts

Given that the atomic mass of oxygen is 16, sulfur is 32, and hydrogen is 1, what is the molar mass of H2SO4?

 

  512 g/mol 

  7 g/mol 

  49 g/mol 

  98 g/mol 

 

Question 8

1 / 1 pts

__________ orbitals form when atomic orbitals combine to make covalent bonds.

 

  Sigma 

  Lone 

  Ionic 

  Molecular 

 

Question 9

1 / 1 pts

6.022 x 1023  is also called __________ number

 

  Lewis's 

  Hund's 

  Avogadro's 

  Dalton's 

 

Question 10

1 / 1 pts

A __________ bond is the attraction of the stationary metal cations to the surrounding mobile electrons.

 

  lone 

  polar 

  metallic 

  covalent 

 

Question 11

1 / 1 pts

A sigma bond can be represented by which of the following symbols?

 

  σ 

  π 

  β 

  λ 

 

Question 12

1 / 1 pts

__________ bonds form when two or more elements share electrons.

 

  Covalent 

  Metallic 

  Ionic 

  Compound 

 

Question 13

1 / 1 pts

A(n)  __________ is a set of valence electrons that do not participate in bonding.

 

  lewis structure 

  central atom 

  lone pair 

  anion 

 

Question 14

1 / 1 pts

__________ is described as the mixing of the atomic orbitals in an atom to produce a set of hybrid orbitals.

 

  Hybridization 

  Configuration 

  Ionization 

  Dissolution 

 

Question 15

1 / 1 pts

A __________ force occurs when two polar molecules interact with one another.

 

  dispersion 

  dipole-dipole 

  ionization 

  polyatomic 

 

Question 16

1 / 1 pts

Unequal sharing of electrons is called molecular __________.

 

  energy 

  valence 

  geometry 

  polarity 

 

Question 17

1 / 1 pts

Identify the anion in the following: Ba2+ + O2-  → BaO

 

  Ba-2

  Ba+2

  O-2

  O+2

 

Question 18

1 / 1 pts

Cl- and PO43- are both examples of __________.

 

  covalent bonds 

  isotopes 

  acids 

  anions 

 

Question 19

1 / 1 pts

A pressure of one atmosphere and a temperature of 0°C is known as __________.

 

  Pi 

  Avogadro's Number 

  a mole 

  STP 

 

Question 20

1 / 1 pts

The __________ theory states that covalent bonds are formed by the overlap of partially filled atomic orbitals.

 

  Octet 

  Dipole 

  VSEPR 

  Valence bond 

 

Question 21

1 / 1 pts

Most pure metals are __________ which means they can be stamped, pressed, or rolled into thin sheets.

 

  conductive 

  ductile 

  shiny 

  malleable 

 

Question 22

1 / 1 pts

__________ is the term that describes the ability of a material to withstand shock without rupturing.

 

  Ductility 

  Configuration 

  Toughness 

  Malleability 

 

Question 23

1 / 1 pts

The percent composition is the percent by __________ of each element in a compound.

 

  area 

  length 

  volume 

  mass 

 

Question 24

1 / 1 pts

The __________ of an ionic compound occurs when water interacts with the ions in the crystal lattice, causing the lattice to break apart.

 

  transition 

  bonding 

  luster 

  dissolution 

 

Question 25

1 / 1 pts

One mole of any chemical substance contains __________ representative particles.

 

  6.022 x 1023

  5.322 x 106

  3.014 x 1010

  7.013 x 101

Answers

(118)
Status NEW Posted 13 Feb 2024 03:02 AM My Price 8.00

Che-----------mis-----------try----------- Pr-----------inc-----------ipl-----------es -----------EHS-----------  -----------Uni-----------t 3----------- Qu-----------iz-----------

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1707796738-Faith Andrews Quiz History Unit 3 Quiz.pdf
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