Chemical Bonding and Polarity

Adhesion and cohesion in water are due to:

(PICK 2)

• Hydrogen bonds between water molecules

• Covalent bonds between water molecules

• Hydrogen bonds between a water molecule and a different molecule

• Ionic bonds between water molecules

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SYI-1A

Topic-1.1

The hydrogen bonds between water molecules are:

• Strong covalent bonds

• Weak electrostatic attractions

• Ionic bonds

• Hydrophobic interactions

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SYI-1A

Topic-1.1

In a water molecule, oxygen has a:

• Slight positive charge

• Slight negative charge

• Neutral charge

• Strong positive charge

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SYI-1A

Topic-1.1

Which of the following statements is true regarding water's ability to dissolve ionic compounds?

• Water cannot dissolve ionic compounds

• Water forms covalent bonds with ionic compounds

• Water breaks ionic bonds through hydrolysis

• Water surrounds and stabilizes ions through opposite charge interactions

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SYI-1A

Topic-1.1

What property of water allows it to act as a solvent for many biochemical reactions?

• High viscosity

• Low surface tension

• High heat capacity

• Polarity and ability to form hydrogen bonds

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SYI-1A

Topic-1.1

When two atoms share electrons, a chemical bond is formed.  This type of bond is called:

• covalent bond

• ionic bond

• crystal bond

• polyatomic bond

Which of these is covalent?

• NaCl

• Pb(NO₃)₂

• CO₂

• AlCl₃

Tags

NGSS.MS-PS1-1

What is a double bond?

• a bond between two atoms

• one pair of electrons shared between two atoms

• two pairs of electrons shared between two atoms

• James Bond's brother

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NGSS.MS-PS1-1

An ionic bond happens between what kinds of elements?

• metals and metals

• metals and nonmetals

• nonmetals and nonmetals

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NGSS.MS-PS1-5

Who could this molecule be?

• CH₄

• CO₂

• PCl₅

• BF₃

Tags

NGSS.MS-PS1-1