Grade 10 Science Lab: Chemical Reactions
Name: _____________________
Date: ______________________
Purpose: The task will require you to apply your understanding of chemical nomenclature,
identifying chemical reactions, writing chemical formulas and balancing equations. In this
experiment you will investigate different chemical reactions.
Learning Goals:
1) Conduct chemical reactions safely
2) Observe the reaction s and record the signs of a chemical reaction
3) By observing chemical reactions , we should:
a. Provide qualitative observations before, during and after the chemical reaction
b. Determine the type of reaction
c. Write a word equation
d. Write a balanced chemical equation with states of all reactants and products
Procedure (materials are provided at each station)
Reaction 1
1) Ignite a small piece of magnesium ribbon in the Bunsen burner flame (Caution: do no look directly at
the burning magnesium!)
2) Compare the materials before and after burning
Reaction 2
1) Add 1 dropper full of hydrochloric acid to the test tube
2) Use tweezers to add a piece of zinc to a test tube
3) Record your observations
4) Pour the contents of the test tube into the waste beaker provided
Reaction 3
1) Describe the hydrogen peroxide (H2O2) and Manganese dioxide (MnO2)
2) Add 1 dropper full of hydrogen peroxide to the test tube
3) Add a very small amount of manganese dioxide to the test tube making sure it reaches the bottom and
contacts the hydrogen peroxide
4) Record your observations – be sure to feel the bottom of the test tube
5) Pour all contents into a waste beaker and clean out the test tube using a test tube brush
Reaction 4
1) Using the dropper, add 3 drops of calcium nitrate to a spot plate
2) Using the dropper add about 4 drops of sodium hydroxide solution to the spot plate
3) Observe and record the appearance of the reactants and products in this reaction.
To be submitted:
1) An organized and neat data table summarizing all observations which include: properties of reactants,
properties of products and signs of a chemical change.
2) For each chemical reaction:
a. Word equation
b. Balanced chemical equation (with states)
c. Type of reaction
Sample Table
Table 1: ________________________________
Station
Reactants with
Observations of
Descriptions
Products and Signs of
Chemical Change
1
2
3
4
Type of
Reaction
Word Equation and Balanced
Chemical Equation