Chapter 19 IPC Test Review
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PRESENTATION OUTLINE
The properties of a compound are _______ the same properties of the elements making up a compound.
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When an atom gains or loses an electrons, the charged particle that results is called _______.
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ANSWER: AN ION
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Because a water molecule has a slight positive charge at one end and slight negative charge at the other end is called a ________ molecule.
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The answer: polar
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An element’s __________ indicates how many electrons the element must gain, lose, or share to become stable.
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Answer: Oxidation Number
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Particles formed from the covalent bonding of atoms are called ________.
Answer: molecules
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An atom is chemically _______ when its outer energy level contains all the electrons it can hold.
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Answer: stable
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Answer: Neutral
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One property of ionic compounds is the ability to conduct ____________.
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Answer: electricity
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A group of covalently bonded atoms that acts together as one charged atom is _______.
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Answer: polyatomic ion
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Answer: covalent
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The oxidation number of an atom is shown with a _______.
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The oxidation number of an atom is shown with a ________.
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Answer: superscript
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What is the name of a compound with the formula NaCl?
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Answer: sodium chloride
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In a chemical formula, the number of each type to atom in the compound is shown by numbers called __________.
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Answer: subscripts
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The elements that make up a compound and the exact number of atoms of each element in a unit of the compound can be shown in a __________.
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Answer: chemical formula
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Ionic or covalent?
MgS - ionic
NaF - ionic
S207 - covalent
CaCO3 - ionic
CS2 - covalent
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Fórmula for:
Diphosphorous pentoxide - P2O5
Dinitrogen tetroxide -
N2O4
Disulfur dichloride -
S2Cl4
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Draw the Lewis structures for the following atoms:
Fluorine F
Potassium K
Boron B
Carbon C
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What type of bond is this? Ionic
What type of bond is formed in Figure 19-2?
Answer: covalent
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What is the formula for:
Lithium sulfide - Li2S
Calcium Chloride - CaCl2
Calcium Oxide - CaO
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