Stand a small candle on a glass plate and light it. You can review the help page for that. A candle can be put out by blowing on the flame. When you burned sulfur, a gas, sulfur dioxide, SO2, was formed by a combination reaction.
The oxygen will displace the water in the container. As KClO3 is heated up it decomposes and O2 is one of the products. The observation is that oxygen bubbles pass through the water and remains a gas.
Prepare oxygen by a decomposition reaction 2. So a candle wick has to remain hot enough to sustain combustion. Does oxygen appear to be soluble in water? When you have a way to produce oxygen, there are a lot of possibilities.
Record the time that the candle burns. Reasoning scientifically, would you conclude that all of the oxygen molecules have reacted when the candle goes out?
Write the correct formulas under the names: It is very hard to drive oxygen away from the silicon and aluminum using heat, but there are other compounds such as the chlorates where heat can cause the oxygen to break loose. That is why potassium chlorate is used an an oxygen source in rockets and in fireworks.
What observation tells you about the solubility of oxygen in water? Blowing on it actually brings more oxygen to the flame, yet it goes out.
Observe and record some chemical and physical properties of oxygen 3.
Behavior of Oxides plus Water 1. He also did an experiment with a guinea pig and realized that respiration of living things was like the combustion of a candle both produced heat and consumed oxygen.
Hold a cm strip of magnesium ribbon in crucible tongs and ignite it by heating with the burner flame Do not look at the burning magnesium because the light is too intense.Here is the best resource for homework help with CHM Chemistry Lab at Rio Salado Community College.
Find CHM study guides, notes, and practice. View Lab Report - CHM LL LAB 7 from CHM at Estrella Mountain Community College. CHM Lab 7 Determining the Formula of a Compound Name:.
Learn chm with free interactive flashcards. Choose from different sets of chm flashcards on Quizlet. Experiment 7: Page A. Physical Properties of O 2 1.
Does oxygen appear to be soluble in water? This question is similar to lab 5 question D. You can review the help page for that. Lab 7 1- The overall objective of the BIA is to identify the impact of outages. More specifically, the goal is to identify the critical functions that can affect the organization.
After these you can identify the critical resources that support these functions. 17 rows · Note that lab runs Saturday through Friday during Fall and Spring semesters, so Friday is the last day for a particular lab experiment.
You cannot makeup a lab after its week is over. If you miss your lab, you can NOT make it up on Saturday because Saturday .Download