Rub the substance on a paper bag, if it leaves a grease stain, it is a Lipid.
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To determine if a substance is soluble, a simple experiment can be conducted by mixing the substance with a solvent, such as water, in a test tube or beaker. Observe whether the substance dissolves completely or partially. If it dissolves, it is considered soluble; if it remains as a solid or forms a precipitate, it is insoluble. This process can be repeated with different solvents to assess solubility in various conditions.
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The process of osmosis.
Benedict's solution
The two factors that determine the state of a substance are temperature and pressure. These factors influence whether a substance exists as a solid, liquid, or gas.
You see the results of your experiment, and determine whether your hypothesis was true or false. Then, you write a summary of what you have determined from your experiment.
litmus paper.
Test your hypothesis by Doing an Experiment
experiment