Litmus paper is used moist to obtain the desired result. Litmus responds different to dry and wet conditions depending on the chemicals being checked.
When moist litmus paper is exposed to carbon dioxide gas, it has a reaction that either changes the colour of the paper, or some other visible or audible product.
Also, nice grammar.
Litmus paper is a tool to identify the acidic or basic character of a substance and without water the acidic or basic nature is meaning less.
To improve the diffusion of solutions in paper.
Blue litmus must also be damp.
It must be possible to observe whether the hypothesis is true.
The wavelength of light used to observe an object must be shorter than the size of the object itself.
The hypothesis must be able to be proved true or false.
Yes. A hypothesis or theory allows you to predict what you might observe scientifically. Sometimes your theory is wrong. It must be tested. Some of mine have been way off.
To ensure that a periodic test is valid you must observe and analyze the test data. This method of test validity is called content validity.
Litmus paper is a tool to identify the acidic or basic character of a substance and without water the acidic or basic nature is meaning less.
No, it can only test whether a chemical is acidic, alkaline or neutral. If it's acidic, it will turn the red litmus paper blue. If it's alkaline, it will turn the blue litmus paper red. But beware, when doing experiment, you must use both of the litmus paper at the same time since if a chemical/solution is neutral, both of the paper won't have any changes.
If the red litmus paper stays red, then the object tested may be either an acid or a neutral substance. The substance must be tested on blue litmus paper. if the blue paper stays blue, then it is neutral. If it turns red, then it is an acid.
The simplest way is to use litmus paper. The mixture must be a liquid so that the mixture can react with the water and so dissociate into either hydronium or hydroxide ions. If it's a solid, try dissolving it in water. If you have a gas, use damp litmus paper. Red litmus paper is used to test for basic substances, and turns blue in a positive test. Blue litmus paper is used to test for acidic substances, and turns red in a positive test.
You must cover it with moist saline dressings.
The air must be moist.
Ferns live in moist environments to transport water to cells.
two safety precautions you must observe when casting pewter
It must be possible to observe whether the hypothesis is true.
Sunday
As with any Church season or holy day, of course all Catholics must observe them.
It must be possible to observe whether the hypothesis is true.