The appropriate answer is a. it involves a change in the molecular structure of the substance. A change in phase or state is referred to as a physical change. For example...liquid water freezing is a physical change because the state changes but solid water is still H20. Separating water into its constituent atoms, hydrogen and oxygen is a chemical change because the molecular structure of water is now non existent.
Oxidation, Dissolving in acid, Hydrolysis ,Water absorption and Hydration
Explanation:
there are 6 significant values
Answer:
0.400 mL
Explanation:
Hello, the dilution factor (in folds) is given by:
Thus, the sample volume with three significant figures is given by:
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