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What is the test to show that a test-tube of gas contains carbon dioxide?
I'm not sure if it's an official test, but you could take a lit match and put it in the test tube (keeping the test tube right side up). If the test tube does contain carbon dioxide the match would be smothered since the carbon dioxide prevents oxygen from reaching the match.
What of these will show that a gas is carbon dioxide?
The gas can be identified as carbon dioxide using a limewater test, where the gas is bubbled through limewater causing it to turn cloudy. Additionally, a carbon dioxide gas sensor can detect the presence of carbon dioxide in the air. Chemical tests such as reacting the gas with sodium hydroxide can also confirm the presence of carbon dioxide.
Students hypothesized that adding to a sixth test tube would produce the greatest amount of carbon dioxide?
It seems like the hypothesis being tested is that adding something to the sixth test tube will result in the highest production of carbon dioxide compared to the other test tubes. The students may be testing the effect of different substances or conditions on carbon dioxide production to see which one produces the most in the sixth test tube.
What happened when you place a lighted match near the mouth of the test tube?
It depends on what is inside the test tube. If the test tube is empty nothing will happen, if there is petrol in the test tube the petrol will ignite.
Why splint test for carbon dioxide is not good?
The splint test is to test for the presence of oxygen. You light a small piece of wood (the splint), then blow it out. The end of the wood will still glow. If you put the glowing splint into a test tube with oxygen, it will relight. It you put the glowing splint into a test tube with carbon dioxide, it will stop glowing. A better test for carbon dioxide is to bubble it through a solution of limewater.
What is the test to show that a test-tube of gas contains carbon dioxide?
I'm not sure if it's an official test, but you could take a lit match and put it in the test tube (keeping the test tube right side up). If the test tube does contain carbon dioxide the match would be smothered since the carbon dioxide prevents oxygen from reaching the match.
What substance would the student expect to find if respiration occurred in the test tube?
The student would expect to find carbon dioxide in the test tube, as it is a product of cellular respiration.
Is oxygen and nitrogen contained in a clean dry test tube?
is carbon dioxide and or hydrogen in a clean empty test tube
How can you show that you breathe carbon dioxide?
By blowing into a test tube of bicarbonate of soda, this should turn cloudy if carbon dioxide is present
In the test tube shown what is the produced by the snail that is used by the plant?
carbon dioxide
Test for carbon dioxide?
To test for carbon dioxide, you can bubble the gas through limewater. If carbon dioxide is present, the limewater will turn cloudy due to the formation of calcium carbonate. Another method is to use a pH indicator, like bromothymol blue, which will change color in the presence of carbon dioxide due to the formation of carbonic acid.
How do you test for carbon dioxide with a splint?
collect gas from reaction with a test tube, then light spint and insert into the gas filled tube. if splint is extinguished immediately, then its CO2. but limewater test is more reliable
What of these will show that a gas is carbon dioxide?
The gas can be identified as carbon dioxide using a limewater test, where the gas is bubbled through limewater causing it to turn cloudy. Additionally, a carbon dioxide gas sensor can detect the presence of carbon dioxide in the air. Chemical tests such as reacting the gas with sodium hydroxide can also confirm the presence of carbon dioxide.
What gas is collected when a uninflated balloon is placed round a test tube of yeast?
Carbon dioxide gas is collected when a uninflated balloon is placed around a test tube of yeast. This is because the yeast produces carbon dioxide gas as a byproduct of the fermentation process.
Students hypothesized that adding to a sixth test tube would produce the greatest amount of carbon dioxide?
It seems like the hypothesis being tested is that adding something to the sixth test tube will result in the highest production of carbon dioxide compared to the other test tubes. The students may be testing the effect of different substances or conditions on carbon dioxide production to see which one produces the most in the sixth test tube.
What happened when you place a lighted match near the mouth of the test tube?
It depends on what is inside the test tube. If the test tube is empty nothing will happen, if there is petrol in the test tube the petrol will ignite.
What are the tests for carbon dioxide and hydrogen?
Carbon dioxide1. Turns lime water (calcium hydroxide) milky2. A lit splint introduced to a test tube containing carbon dioxide should go outHydrogenA lit splint introduced to a test tube of hydrogen should go out with a distinct "pop"
