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Suppose that in the laboratory you are given a sample of vinegar and you are asked to substance identify: a.three physical properties. b.a chemical property
Suppose that in the laboratory you are given a sample of vinegar and you are asked to substance identify: a.three physical properties. b.a chemical property that could be determined. Mention the substance that would use to react with the vinegar. 2. Classify the following as chemical or physical changes. dissolve oxygen in water burn a paper freeze cyclohexane melt table salt cook an egg 3. Complete the following reactions. Write the physical state of the products (s, I, g, ac)Refer to Appendix B for solubility and gas formation rules. identify those reactions in which a chemical change occurs. NH4 NO3 (aq) + NaOH (aq) FeSO4+ (aq)+ HCl (aq) CaCl2 (aq) H2SO4 (aq)1. Suponga que en el laboratorio se le entrega una muestra de vinagre y se le pide que para esta sustancia identifique: a. tres propiedades fsicas. b. una propiedad qumica que podra ser determinada. Mencione la sustancia que utilizara para reaccionar con el vinagre. 2. Clasifique los siguientes como cambios qumicos o fsicos. disolver oxgeno en agua quemar un papel congelar ciclohexano derretir sal de mesa cocinar un huevo 3. Complete las siguientes reacciones. Escriba el estado fsico de los productos (s,I,g,ac) Refirase al pendice B para las reglas de solubilidad y formacin de gases. Identifique aquellas reacciones en las cuales ocurre un cambio qumico
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