Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter11: Stoichiometry
Section: Chapter Questions
Problem 59A
Related questions
Question
answer 1 through 10 blank spaces
![9:47
Chapter 8-Chemical Reactions E...
DIRECTIONS: Write the word or words that best completes
each statement.
1. In a
change, one kind of matter is
turned into another.
2. A chemical reaction is accompanied by a change in the
of the
and
substance.
3. А (An)
means “yields".
4. According to the law of
be neither created nor destroyed during
matter can
a chemical reaction.
5. Two or more simple substances combine to form a new,
more complex substance in a (an)
reaction.
6. An uncombined element replaces an element that is part of a
compound in a (an)
reaction.
7. A reaction in which energy is released is called a (an)
reaction.
8. In an endothermic reaction, the
have
more energy.
9. The study of reaction rates is called
10. A substance that increases the rate of a chemical reaction
without itself being changed is called
а (an)
DIRECTIONS: Determine whether each statement is true or
false. Write the word TRUE if the statement is true or write
FALSE if the statement is FALSE. If the statement is false,
change the BOLD word or words to make the statement true.
1. The substances formed as a result of a chemical reaction are
called REACTANTS.
2. A CHEMICAL EQUATION uses symbols and formulas to
represent a reaction.
3. A number written in front of a chemical symbol or formula
is a (an) COEFFICIENT.
4. To balance the following equation, the number 2 should be
placed in front of O2:
KCIO3
----------à
KCI
+
02
5. In a SYNTHESIS reaction, complex substances from
simpler substances.
6. The formation of carbon dioxide during combustion of fuel
is an example of a DECOMPOSITION
reaction.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdd8194b3-7570-4a85-87b7-90a14b786171%2F37b12aa6-34eb-46e7-86c1-d095fd0ed1f6%2Fw6s9f9m_processed.jpeg&w=3840&q=75)
Transcribed Image Text:9:47
Chapter 8-Chemical Reactions E...
DIRECTIONS: Write the word or words that best completes
each statement.
1. In a
change, one kind of matter is
turned into another.
2. A chemical reaction is accompanied by a change in the
of the
and
substance.
3. А (An)
means “yields".
4. According to the law of
be neither created nor destroyed during
matter can
a chemical reaction.
5. Two or more simple substances combine to form a new,
more complex substance in a (an)
reaction.
6. An uncombined element replaces an element that is part of a
compound in a (an)
reaction.
7. A reaction in which energy is released is called a (an)
reaction.
8. In an endothermic reaction, the
have
more energy.
9. The study of reaction rates is called
10. A substance that increases the rate of a chemical reaction
without itself being changed is called
а (an)
DIRECTIONS: Determine whether each statement is true or
false. Write the word TRUE if the statement is true or write
FALSE if the statement is FALSE. If the statement is false,
change the BOLD word or words to make the statement true.
1. The substances formed as a result of a chemical reaction are
called REACTANTS.
2. A CHEMICAL EQUATION uses symbols and formulas to
represent a reaction.
3. A number written in front of a chemical symbol or formula
is a (an) COEFFICIENT.
4. To balance the following equation, the number 2 should be
placed in front of O2:
KCIO3
----------à
KCI
+
02
5. In a SYNTHESIS reaction, complex substances from
simpler substances.
6. The formation of carbon dioxide during combustion of fuel
is an example of a DECOMPOSITION
reaction.
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