Some antacids are used by dropping a tablet into a glass of water, which results in significant fizzing, and then drinking the water. Is there any evidence to suggest there might be a chemical reaction involved? What is the evidence?
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Some antacids are used by dropping a tablet into a glass of water, which results in significant fizzing, and then drinking the water. Is there any evidence to suggest there might be a
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- In an experiment, what happens to the calculated molar mass after waiting an hour between thawing the frozen cyclohexane and adding the unknown compound, during which time some of the cyclohexane evaporated. Will the molar mass be too large, too small, or unaffected? Explain.|Is starch soluble in water? How might that be helpful in determining the rate of reactivity? How might that decrease the rate of reactivity?What coefficient must be placed in the following blanks so that all atoms are accounted for in the products? C6H12O6 ------->___________C2H6O +_____________CO2 a. 1;2 b. 3;1 c. 1;3 d. 2;2
- Many consumer products are almost identical in chemical composition but are sold under different brand names and at varying prices. Should some medical drugs be identified by their chemical (generic) names or trade names? Why?What product is formed when a solution of A and B is treated with mild base? This reaction is the first step in the synthesis of rosuvastatin (sold as a calcium salt under the trade name Crestor), a drug used to treat patients with high cholesterol.Which one of the following substances would you expect to be most soluble in water?A) ButanolB) Butanoic acidC) 2-pentanoneD) Propane
- You are trying to separate a mixture of AMP, ADP, and ATP using ion exchange chromatography. Which of the following is NOT an appropriate reagent for this experiment? You can not separate nucleotides using ion exchange chromatography. A positively charged column Protonated buffer 0.05 M NaCl buffer (constant concentration)A patient comes into your office complaining of Covid-19 symptoms. As part of the routine work-up, you take a blood profile and realize that their blood pH is 7.55. Which of the following is true?The phrase that denotes a simple substitution reaction between the following expressions 1- The burning of a strip of magnesium in the open air 2- Dipping the zinc electrode in a solution of copper sulfate 3- Electrolysis of water 4- The neutralization of hydrochloric acid with sodium hydroxide
