Biol 212

Biol 212

University

46 Qs

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Biol 212

Biol 212

Assessment

Quiz

Science

University

Practice Problem

Easy

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bao kim

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46 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What kinds of bonds are broken when water is boiled?


Hydrophobic bonds

Polar covalent bonds

Hydrogen bonds

Nonpolar covalent bonds

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What kinds of bonds are broken when table salt (NaCl) dissolves in water?


 

Ionic bonds


Hydrogen bonds

Polar covalent bonds

Nonpolar covalent bonds

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many single covalent bonds can a carbon atom make?


4

1

2

8

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Covalent bonds join atoms together in molecules.  Some bonds are polar while others are nonpolar. The atoms joined by a nonpolar bond generally have .......

Similar electronegatively

No electronegativity

Dissimilar electronegativity

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Black tea has a reported pH of about 5, while Coke Classic is 2.4.  Which between the two is more acidic?

 

Coke Classic


Black tea

Cannot tell from the information given

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What properties make water an excellent solvent?


Non-polarity, bent molecular shape, covalent bonding

 

Polarity, bent molecular shape, hydrogen bonding


Non-polarity, bent molecular shape, hydrogen bonding

Polarity, bent molecular shape, covalent bonding

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There are 20 different amino acids. What differentiates one amino acid from another?

Different side chains (R-groups) attached to a carboxyl carbon

Different side chains (R-groups) attached to an α carbon atom

Different structural and optical isomers

Different side chains (R-groups) attached to the amino groups

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