Water is used in an experiment because (for example) you need to separate a mixture, it can be evaporated. Basically, water is used because it is easier to work with since it can be in all three states (solid, liquid, gas). :)
The chemical name of the substance used in the experiment is sodium chloride.
One way to separate the blue-green chemical from water is through a process called liquid-liquid extraction. In this experiment, you can mix the water containing the blue-green chemical with an organic solvent such as dichloromethane. The blue-green chemical will partition into the organic solvent, allowing you to separate the two layers. The organic solvent layer can then be evaporated to obtain the blue-green chemical.
For the best chemical reaction in a volcano experiment, use about 1/4 cup of vinegar and 1 tablespoon of baking soda.
Anhydrous sodium sulfate is used in experiments to dry organic solvents by removing residual water. It is a desiccant, meaning it has a strong affinity for water and can absorb any remaining moisture in the solvent, making it suitable for certain chemical reactions that are sensitive to water.
I would say no. Drinking water straight from the water supply will have additives (such as fluorine, chlorine etc). The additives are only in minute quantities, but may affect any experiments. Distilled water is much more pure.
The chemical name of the substance used in the experiment is sodium chloride.
distilled water is used in chemical experiments because you already have a control group (whatever type of water you used) and you need other groups that dont have the same water in them to compare the control group to!
If water is not still before an experiment then if the experiment involves measuring water then the measurement would not be accurate. Also if there is something in the water you might spill it out and spoil your experiment.
Yes. How much it affects the experiment depends on exactly what the experiment is and how much the temperature has changed, but any change in temperature affects water's physical and chemical properties.
if the salt or other impurities in 'fresh water' will not interfere with the experiment, yes.
Why must controls (such as plants given water only) be used in the fertilizer experiment
Giving some to whatever you're trying to poison and seeing if it dies. It's more a biological experiment than a chemical one.
I suppose that the chemical analysys of the condensed water can offer information.
water and light
Salt solutions are used in osmosis experiment to show that water will move to the side that has more salt. "Water follows salt."
It is used for production of heat during experiment or during chemical reaction by labouratory users.
A bacteriostatic test chemical could be used.