NH; Aqucous Ammonia A / A1. white powder Find the corresponding NaOH indicator. Explain Blue Dye and NaOCI Phenolphthalein acts well as an acid/base indicator. HCI and Blue Dye Apple slices turning brown in the air. ii. experiences in the experiment to describe these dif f erences. Did either heating or burning produce a chemical change? Well Chemical #1 (4 drops) Chemical #2 (4 drops) Observations: Chemical Change (Y/N) A1 NaHCO3 Sodium Bicarbonate HCl Hydrochloric Acid When the HCL was added, it bubbled for about 2 seconds then stopped. 10. False, 10. Identify the products and the reactants in the reactions. Describe how your observations for this reaction support your, You found a sample of a solution that has a faint odor resembling vinegar (an acid). Suppose a household product label says it contains sodium hydrogen carbonate (sodium. Pb(NO3}2 directly over a flame, the magnesium bursts into a bright white light, whereas in the test tube it When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. light blue liq NAHCO3 Observations of Chemical Changes. Copyright 2019 - Hands-On Labs | http://holscience.com 7 / 10. iPad. The reactant was sunlight which caused a chemical change. No problem! Step 2: Ask Question a Question and Conduct Mass (amu) 44.01 amu Background of COz Research Mass (amu) 28.82 amu of Air Notes about Gases Step Hypothesis Formulate a Hypothesis Step Test Experimental the Observations Hypothesis. Burning paper clear liquid When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. In well B1, what was the reactant in the second step? of substances interact with one another to, 4. Record your result in Table 3., b. data table 1: chemical change observations. 3. Both a chemical and physical change occurred. 1 Shredding paper Here you will also find the best quotations, synonyms and word definitions to make your research paper well-formatted and your essay highly evaluated. A(n) _____ is the explanation of why something hwhat happened. chemical is Only the users having paid subscription get the unlimited number of samples immediately. Acid (7 points), The above table shows the results of an experiment on the functioning of a mammalian kidney. Did either heating or burning produce a chemical change? Label each substance on seven pieces . Chemical Reactions. C2 Using your results f rom Data Table 1 as a guide, how would you More pronounced with white paper. support your answer. In well B1, what was the reactant in the second change? From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. Chemical Change E (YiN)

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