The aqueous acidified potassium dichromate(VI) solution turns from orange to green.
yes
Sulfur dioxide has a sharp, pungent smell similar to burnt matches. It can be identified by its distinctive odor and by using chemical tests such as the lead acetate test, which produces a black precipitate in the presence of sulfur dioxide.
A positive result in the reduced sulfur test indicates the presence of reduced sulfur compounds in the sample. These compounds can be produced by certain bacteria or by chemical reactions involving sulfur-containing molecules. The test usually involves a color change or the formation of a black precipitate to confirm the presence of reduced sulfur compounds.
You fail the test.
Sulfur dioxide can be tested using an analytical method called aeration-iodometric titration. This method involves bubbling the gas through a solution of hydrogen peroxide and then titrating the resulting sulfuric acid with an iodine solution to determine the concentration of sulfur dioxide present. Alternatively, portable gas analyzers can also be used to measure sulfur dioxide levels in the air directly.
One common method to test for the presence of sulfur dioxide is using sodium metabisulfite paper strips, which change color in the presence of sulfur dioxide. Another method is using a chemical solution like hydrogen peroxide and hydrochloric acid, which reacts with sulfur dioxide to form a white precipitate of sulfur.
You won't be in the Military anymore.
Jail
If the test is positive, the antigens that react will narrow the search for a cause
A positive test for carbon dioxide is the limewater test. When carbon dioxide gas is bubbled through limewater, it turns milky or cloudy due to the formation of a white precipitate of calcium carbonate.
It should bubble.
the positive test for oxygen is very simple. all that needs to happen is a vile must be filled 1/4 with hydrogen peroxide and a glowing splint must be inserted in t the vile . the splint will reignite after it is inserted int the vile.