AnswersLA-Chemistry AIntroduction to Stoichiometry

Studying for Tests Answers

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Consider this reaction: 2H+ + CO32- → H2O + CO2. Identify each of the following as a product, a reactant, or a coefficient.CO32-:

A
product
B
reactant
C
coefficient
2
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CO2:

A
product
B
reactant
C
coefficient
3

The 2 in front of H+:

A
product
B
reactant
C
coefficient
4

The 2 in front of H+:

A
product
B
reactant
C
coefficient
5

Sequential note-taking is a good solution when you need to

A
record information to commit to memory.
B
make note of dates in chronological order.
C
show how concepts relate to each other.
D
identify any questions on the material.
6

What is one reason to create a study checklist?

A
to place main ideas on a graphic organizer
B
to make note of dates in chronological order
C
to show how concepts relate to each other
D
to identify any questions on the material
7

Peyton has a hard time studying because it can be difficult to see the pages of his textbook.

A
He can find a more comfortable chair.
B
He can create a well-organized area.
C
He can remove any possible distractions.
D
He can choose an area with more light.
8

Which best describes distractions in study environments?

A
It is hard to focus if a student is distracted.
B
Everyone is distracted by the same things.
C
Music is always a distraction while studying.
D
Friends are always a distraction while studying.
9

Kendrick has a hard time studying because it is difficult to find things on his crowded desk.

A
He can find a more comfortable chair.
B
He can create a well-organized area.
C
He can move to an isolated area.
D
He can have more resources available.
10

Why might a student create a study checklist? Select three options.to make note of all assignmentsto create a list of vocabulary termsto keep track of upcoming deadlinesto show how concepts are connectedto record ideas and details from a textbook

A
to make note of all assignments
B
to create a list of vocabulary terms
C
to keep track of upcoming deadlines
D
to show how concepts are connected
E
to record ideas and details from a textbook
11

Identify each of the following reactions as balanced or unbalanced.CH4+ 2O2 → CO2 + 2H2O:

A
balanced
B
unbalanced
12

What is the most likely reason Benny’s grade on the test was lower than he had hoped?

A
His note-taking skills were poor.
B
He did not review the key concepts.
C
He should have crammed before the test.
D
He did not pick an efficient study environment.
13

What is the main reason to create flash cards?

A
to record information to commit to memory
B
to place main ideas on a graphic organizer
C
to show how concepts relate to each other
D
to identify any questions on the material
14

Consider this reaction: 2H+ + CO32- → H2O + CO2. Identify each of the following as a product, a reactant, or a coefficient.CO32-:

A
product
B
reactant
C
coefficient
15

Identify each of the following reactions as balanced or unbalanced.CH4+ 2O2 → CO2 + 2H2O:

A
balanced
B
unbalanced
16

CaCl2+ 2AgNO3 → Ca(NO3)2 + 2AgCl:

A
balanced
B
unbalanced
17

Chin used a concept map to take careful notes in history class. The night before the history test, he sat in a chair with a supportive back to study. As he reviewed his notes, he made playlists of his favorite songs. Chin later received a poor grade on the test.

A
tried a different note-taking method.
B
borrowed a friend’s notes instead.
C
studied without any distractions.
D
sat in a more comfortable chair.
18

H2O:

A
product
B
reactant
C
coefficient
19

CaCl2+ 2AgNO3 → Ca(NO3)2 + 2AgCl:

A
balanced
B
unbalanced
20

3Fe3O4 + 4Al → 9Fe + 4Al2O3:

A
balanced
B
unbalanced

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