Chemistry Final 2018

Descrição

EVENS Pg. 14-17 #1-34
Elizabeth Nguyen
Quiz por Elizabeth Nguyen, atualizado more than 1 year ago
Elizabeth Nguyen
Criado por Elizabeth Nguyen quase 6 anos atrás
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Resumo de Recurso

Questão 1

Questão
When atoms combine to form a molecule by sharing electrons, what type of bonds are formed?
Responda
  • covalent
  • hydrogen
  • ionic
  • polar ionic

Questão 2

Questão
A metallic bond is formed between
Responda
  • a metal atom and a hydrogen atom
  • a metal atom and a nonmetallic atom
  • a metal atom and a noble gas
  • two metal atoms

Questão 3

Questão
The bonds found in C2H4 are
Responda
  • covalent
  • ionic
  • metallic
  • polar

Questão 4

Questão
Which is a covalent compound
Responda
  • Mg3N2
  • NaCl
  • NaF
  • SiF4

Questão 5

Questão
Salts are compounds that form a crystal lattice. Which types of bonds are responsible for this lattice formation?
Responda
  • covalent
  • hydrogen
  • ionic
  • polar

Questão 6

Questão
The electrostatic attraction between atoms in a salt is
Responda
  • strongest when the ions are small
  • weakest when one of the ions is hydrogen (atomic number 1)
  • strongest when one of the ions is potassium (atomic number 19)
  • strongest when one of the ions is iodine (atomic number 53)

Questão 7

Questão
Which illustration most likely represents a liquid?
Responda
  • Q
  • R
  • S
  • T

Questão 8

Questão
At room temperature, which substance has the weakest intermolecular forces?
Responda
  • oxygen
  • salt
  • steel
  • uranium

Questão 9

Questão
Why are Lewis dot structures used?
Responda
  • to show what type of bonds are formed
  • to show valence electrons
  • to show electronegativity values
  • to show intermolecular forces

Questão 10

Questão
Fluorine has seven electrons in its Lewis dot structure. What is the electron configuration for fluorine?
Responda
  • 1s²2s²
  • 1s²2s²2p³
  • 1s²2s²2p⁴
  • 1s²2s²2p⁵

Questão 11

Questão
The electron configuration for an atom of iron is [Ar] 3d⁶4s². Which is the correct Lewis dot structure for iron?

Questão 12

Questão
The Lewis dot structure for Cl2 is shown below. What is the probable shape of Cl2?
Responda
  • bent
  • linear
  • pyramidal
  • tetrahedral

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