C.PROPERTIES
1.Uncork one test tube of oxygen and then insert a glowing splint. Observe.
2.Place a small amount of sulfur in the deflagrating spoon. Ignite the sulfur and immediately tilt it into a test tube of oxygen. Take note of the odor of the gas produced and add 5mL of water into the test tube.Shake and test the solution with blue and red litmus paper.Observe.
2.Ignite one end of a strip of magnesium ribbon and immediately drop it into a test tube of oxygen. Cool the tube and add 5mL of water shake the mixture thoroughly and test with litmus paper. Observe.
Questions:
1.Describe the physical properties of oxygen.
2.(For procedure no.1 of PROPERTIES)
Does the splinter continue burning in the tube? Why?
What can you say about the relative density of oxygen?
3.(For procedure no.2 of PROPERTIES)
What was formed when sulfur was heated?
What is the equation?
What solution is formed after adding H20(water)?
What is the equation?
(next questions to the next post...)
2007-08-09 21:49:27 · 4 answers · asked by jmar 1 in Science & Mathematics ➔ Chemistry
1).oxygen supports combustion, it is a neutral gas,meaning it is not acidic nor basic.and it is a gas at room temperature and it is tasteless and odourless.
2)no, because it will use up all the oxygen eventually.the relative density of oxygen is less than of water
3)sulfur dioxide.equation:S(s)+O2(g)= SO2(g)
the solution is aqueous sulfurous acid. equation:SO2(g)+H2O(l)= H2SO3(aq)
2007-08-10 01:35:33 · answer #1 · answered by Dr. Eddie 6 · 0⤊ 0⤋
Woah
2007-08-10 05:00:58 · answer #2 · answered by Anonymous · 0⤊ 0⤋
How dumb. How can we observe the reaction taking place?!?
Sounds to me like someone's skipping school.
2007-08-10 04:51:32 · answer #3 · answered by ferociousnibbler 3 · 0⤊ 0⤋
What?
2007-08-10 04:52:18 · answer #4 · answered by Boomer 5 · 0⤊ 0⤋