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725 Words Feb 22nd, 2014 3 Pages
properties of gasesLab Report for Experiment # 1 Properties of Gases

Student's Name Lisa Anthony
20/20
Date of Experiment 09/29/2013

Date Report Submitted Please leave nothing blank

Title: Properties of Gases Purpose: To investigate some physical and chemical properties of gases To use these properties to identify these gases when they are encountered Procedure: Have you made any changes to the procedure? Please explain. If you made no changes, state so. (1 point)
No

Please Note: This lab involves a lot of waiting for the gas collection. Make sure you allot yourself the full three hours to perform the experiments.
Observations: Use this table to record all your observations for
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Write a balanced equation for the reaction of hydrogen and oxygen. You will first need to determine the product for the reaction. (If you have trouble with determining the product, use Google.)

Hydrogen + oxygen → water
2H2 + O2 → 2H2O

B. Write a balanced chemical equation for the reaction of carbon dioxide with limewater. The formula for the active substance in limewater is on the pipet, and the products of the reaction are calcium carbonate and water.
Ca(OH)2(aq) + CO2(g) = CaCO3(s) + H2O(l)

Good job with the equations. Make sure you keep using proper subscripts and superscripts in future reports.

C. Based on your observation for when you blew gently into the limewater, what is present in your exhaled breath? CO2

REFLECTION (5 pts)

Think about the gas laws we are studying. Boyle’s law tells us that pressure and volume are inversely proportional. Charles’ law states that volume and temperature are directly proportional. We also know that pressure and temperature are directly proportional. Discuss at least one instance in your personal experience where you have seen one or more of these laws in action.

I can give you an example from my childhood. I grew up in a small town at a time when people still burned their trash in their
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