Art-based Question Unit 3 Question 1
Part A
This is an example of __________.
ANSWER:
This is an example of __________.
nonpolar covalent bond |
ionic bond |
hydrogen bond |
polar covalent bond |
Art-based Question Unit 3 Question 2
Part A
This is an example of __________.
ANSWER:
This is an example of __________.
nonpolar covalent bond |
hydrogen bond |
ionic bond |
polar covalent bond |
Art-based Question Unit 3 Question 3
Part A
The bonds between neighboring water molecules in the figure are __________.
ANSWER:
The bonds between neighboring water molecules in the figure are __________.
hydrogen bonds |
ionic bonds |
nonpolar covalent bonds |
polar covalent bonds |
Lab Manual Unit 3 Pre-Lab Quiz Question 1
Part A
Which falls into the category of largest level of structural organization?
ANSWER:
Which falls into the category of largest level of structural organization?
organelle |
atom |
cell |
molecule |
Lab Manual Unit 3 Pre-Lab Quiz Question 2
Part A
What part of the atom is most critical for creating chemical bonds?
ANSWER:
What part of the atom is most critical for creating chemical bonds?
electrons |
neutrons |
nucleus |
protons |
Lab Manual Unit 3 Pre-Lab Quiz Question 3
Part A
Water molecules rely on ________ to hold them together.
ANSWER:
Water molecules rely on ________ to hold them together.
ionic bonds |
polar covalent bonds |
hydrogen bonds |
nonpolar covalent bonds |
Lab Manual Unit 3 Pre-Lab Quiz Question 4
Part A
The tendency for water molecules to stick or cling to another surface is called ________.
ANSWER:
The tendency for water molecules to stick or cling to another surface is called ________.
reactivity |
adhesion |
cohesion |
solubility |
Lab Manual Unit 3 Pre-Lab Quiz Question 5
Part A
Water is called ________ because most molecules will dissolve in it.
ANSWER:
Water is called ________ because most molecules will dissolve in it.
the multi-dissolving solute |
the universal solvent |
a solution |
the organic solvent |
Lab Manual Unit 3 Post-Lab Quiz Question 1
Part A
Two hydrogen atoms share electrons equally between each other, forming a molecule. What type of bond is this?
ANSWER:
Two hydrogen atoms share electrons equally between each other, forming a molecule. What type of bond is this?
hydrogen bond |
ionic bond |
nonpolar covalent bond |
polar covalent bond |
Lab Manual Unit 3 Post-Lab Quiz Question 2
Part A
Two water molecules are weakly attracted to each other when a slightly positive hydrogen atom in the first molecule is attracted to the slightly negative oxygen atom on the second molecule. What type of bond is this?
ANSWER:
Two water molecules are weakly attracted to each other when a slightly positive hydrogen atom in the first molecule is attracted to the slightly negative oxygen atom on the second molecule. What type of bond is this?
hydrogen bond |
polar covalent |
ionic |
nonpolar covalent |
Lab Manual Unit 3 Post-Lab Quiz Question 3
Part A
Which is an example of surface tension?
ANSWER:
Which is an example of surface tension?
hydrolysis reactions of water molecules and salts |
tendency for evaporation on the surface of a solution |
absorption of heat a the surface of a solution |
cohesion of water molecules at the air/water boundary of the alveolus |
Lab Manual Unit 3 Post-Lab Quiz Question 4
Part A
In a mixture of salt water, the salt is called the:
ANSWER:
In a mixture of salt water, the salt is called the:
solvent |
substrate |
solution |
solute |
Lab Manual Unit 3 Post-Lab Quiz Question 5
Part A
Why would ethanol evaporate more quickly than water?
ANSWER:
Why would ethanol evaporate more quickly than water?
Ethanol absorbs oxygen molecule more readily and turns into air. |
Ethanol does not have as many hydrogen bonds holding the molecules together. |
Water has stronger covalent bonds holding its molecules together. |
Water does not absorb heat as quickly as ethanol. |
Art-based Question Unit 3 Question 4
Part A
The most acidic substance in the figure is __________.
ANSWER:
The most acidic substance in the figure is __________.
lemon juice |
pure water |
bleach |
milk |
Lab Manual Unit 3 Pre-Lab Quiz Question 6
Part A
The pH scale:
ANSWER:
The pH scale:
measures the salt concentration of a solution |
defines neutral as a pH of 5 |
measures the hydrogen ion concentration of a solution |
ranges from 1 to 7 |
Lab Manual Unit 3 Pre-Lab Quiz Question 7
Part A
Which pH value is the MOST acidic?
ANSWER:
Which pH value is the MOST acidic?
seven |
two |
five |
twelve |
Lab Manual Unit 3 Pre-Lab Quiz Question 8
Part A
A solution with a pH of 13 is called:
ANSWER:
A solution with a pH of 13 is called:
alkaline |
covalent |
acidic |
neutral |
Lab Manual Unit 3 Pre-Lab Quiz Question 9
Part A
What happens to blood hydrogen ion levels as carbon dioxide levels rise?
ANSWER:
What happens to blood hydrogen ion levels as carbon dioxide levels rise?
They go down. |
They go up. |
There is no change. |
Lab Manual Unit 3 Post-Lab Quiz Question 6
Part A
What tool would help you determine the pH of urine?
ANSWER:
What tool would help you determine the pH of urine?
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