Download Chemical Reactions

Student Name: ________________________
SNC 3E
Unit #1 – Materials and Safety
Date: ________________
Science Wise: Succeeding in Today’s World
2.1 Chemical Reactions
Chapter Notes (pg.32-45)
Chemical Change
A __________________ _________________ occurs when the
properties of the __________________, what you end up with, are different
from the _________________, the starting substances. The following is an
example of a chemical reaction:
This type of change is called a ________________ _______________.
A chemical change always involves ________________ a new
___________________. A chemical change may be observed during a
chemical reaction when the following happens: (use figure 2.2a-e)
1. ________________________________________________
2. ________________________________________________
3. ________________________________________________
4. ________________________________________________
5. ________________________________________________
Chemical Test
___________________ _______________ are not only used to make
new substances. They are also useful in __________________
________________ ________________. The tests that are used to
determine unknown substances are called ________________ __________.
Chemical Test for… What to Do…
Results…
Oxygen gas
Hydrogen gas
Carbon Dioxide gas
Water Vapour
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Student Name: ________________________
SNC 3E
Unit #1 – Materials and Safety
Date: ________________
Science Wise: Succeeding in Today’s World
2.1 Chemical Reactions
Chemical Rates of Reaction
The ___________ of which a new substances forms is called the
___________ of __________________. Different chemical substances will
produce _______________ at _________________ rates.
Factor that affects
rate of reaction
Temperature
What is the effect?
Example
Surface Area
Concentration
Catalyst
Rates of Reaction and Their Consequences
The factors that ________________ the rate of reaction can be either
________________ or _________________. Many industries use
________________ __________________ to produce new _____________
or to change existing products. For example, ________________ is a very
important chemical is today’s society. It is used in the production of
_________________, _______________, _____________ and
___________________ ________________. Ammonia made
_____________________, uses the _______________ ______________.
This process uses 2 factors that increase the rate of reaction: ___________
___________________ and an _____________ ________________.
Review and Apply
1. Burning leaves is considered what type of change? (chemical or physical
change) Explain your answer.
_____________________________________________________________
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Student Name: ________________________
SNC 3E
Unit #1 – Materials and Safety
Date: ________________
Science Wise: Succeeding in Today’s World
2.1 Chemical Reactions
2. When zinc is placed in hydrochloric acid, zinc chloride and hydrogen gas
are produced. How would you test for hydrogen gas?
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
3. Why do photographers store film and batteries in a refrigerator? (Think
about rates of reactions)
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
4. What are the potential dangers that have to do with grain elevators or
coal mines? List the reasons and effects of the rate of reactions.
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
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