include calculations

1. Suppose you are given a sample of vinegar in the laboratory and asked to identify for this substance a Thrge Rhysical properties b. A chemical property that could be determined. Mention the substance you would use to react with vinegar. 2 In the following sentences classify the changes as chemical or physical Statement Type of change Dissolve oxygen in water Burn a paper Freeze syclohexane Melt table salt Cook an egg 3. Complete the following reactions. Write down the physical state of the products (s. 1 g, ac) Refer to Appendix B of the laboratory textbook, for the rules of solubility and gas formation Identify those reactions in which a chemical change accurs. NH.NO3ac) NaOH(a) FeSOuac) HCl(ac) CaCl2 + H2SO4)