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 02: 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. 7. In an exothermic reaction, products have MORE energy than reactants. 8. The COLLISION THEORY can be used to account for the factors that affect reaction rates. 9. CONCENTRATION, is a measure of the energy of motion of molecules. 10. Increasing surface area INCREASES reaction rate.
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 02: 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. 7. In an exothermic reaction, products have MORE energy than reactants. 8. The COLLISION THEORY can be used to account for the factors that affect reaction rates. 9. CONCENTRATION, is a measure of the energy of motion of molecules. 10. Increasing surface area INCREASES reaction rate.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
answer 1 to 10 blank spaces
Transcribed Image Text:9:49
E Chapter 8-Chemical Reactions E...
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.
7. In an exothermic reaction, products have MORE energy than
reactants.
8. The COLLISION THEORY can be used to account for the
factors that affect reaction rates.
9. CONCENTRATION, is a measure of the energy of motion
of molecules.
10. Increasing surface area INCREASES reaction rate.
CLASSIFY THE FOLLOWING CHEMICAL REACTIONS
1. NiC12 -------à Ni
+
C1 2
2. MgBr2
2K
------à
Mg
2KB.
3. 4C
+
6H2
+
02
-----à
2C2H6O
4. 2LİI
5. 2H2O
------à
Pb(NO3)2
02
+
2LINO3
+
PbI2
------à
2H2O2
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