Chromium-51 is a radioisotope that is used to assess the lifetime of red blood cells The half-life of chromium-51 is 27.7 days. If you begin with 79.2 milligrams of chromium-51, how many milligrams will you have left after 139 days have passed? mg Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222 is 3.82 days. If you begin with 88.8 milligrams of radon-222, how many milligrams will you have left after 11.5 days have passed? mg Thallium-201 is used medically to diagnose heart problems. The half-life of thallium-201 is 72.9 hours. How many milligrams of a 52.3 milligram sample of thallium-201 will be lost by radioactive decay during 219 hours? mg

Q: Indigo is a blue dye: H H H. H. N. „H =C `H H H H a) Draw the line structure for indigo. b) Place an…

A: Organic compounds are mostly made up of carbon, hydrogen, oxygen and nitrogen atoms, and organic…

Q: 1. LIAIH4 2. H₂O* 3. SOCI₂

A: Lithium aluminum hydride reduces the carbonyl compounds into alcohols. In this reagent, a hydrogen…

Q: Question #6

A:

Q: Fermentation is an important chemical reaction both in bread baking and in the production of…

A: CO2 concentration can be increased in the above mentioned reaction if we decrease the concentration…

Q: 1, a)Write the sum of the coefficients of the balanced chemical equation for the complete…

A:

Q: Calculate the cost per individual molecule of your pain reliever. Acetaminophen has the chemical…

A:

Q: 8. BaCh(aq) +Na;PO4(aq) yes

A: The reactants given are, 1) BaCl2 (aq) 2) Na3PO4 (aq)

Q: OH ZI HN Н OH

A: =>  The carbon center in the molecule which is         responsible for the stereoisomerism in the…

Q: ach sketch below shows three objects with an electric charge. In each case, decide whether there is…

A: Electric charge can be positive or negative. In chemistry, electrons carry the negative charge while…

Q: Which of the following developments made cigarettes dangerous? i. Automated cigarette rolling ii.…

A: The cigarettes made by automated rolling is more dangerous for health rather than the normal…

Q: 2. Indicate whether each of the following statements is true or false. If you think a statement is…

A: 1) If buckyballs can be woven into fabric, they could be used to create bullet and knife-proof…

Q: Please answer the following question:

A: SCENARIO B 2. Answer: This issue is best studied in a field setting.2. Why? Natural Behavior:…

Q: +2 +1 +1

A: Answer:Opposite charges attracts each-other and same charges repel each-other and magnitude of that…

Q: Suppose that in a random selection of 100 colored candies, 25% of them are blue. The candy company…

A: Number of colored candies = 100 Percent of blue candies = 25 % Company claims that the percentage of…

Q: I am not sure how to answer the questions in 13.51

A:

Q: + 2

A: The given reaction is Fridel-Craft acylation reaction.

Q: IV. Based on the chemistry in this experiment, complete the following reaction. HO CHO HO H. H.

A:

Q: COOH NO2 Br

A:

Q: Gas Baron, the new SUV from US motors, features a 30 gallon (113.4 L) gas tank. assuming complete…

A:

Q: Q2. Consider eating a meal providing a total of 1,815 kilocalories, and containing 190 g…

A:

Q: Read and interpret the following information using the following abstract from a scientific journal…

A: Here the Abstract of the research publication is needed to be summarized in two to three sentences.…

Q: Much of Earth's history can be unraveled studying sulfur. Sulfur can be used as "geothermometer".…

A: Given Data:Much of Earth's history can be unraveled studying sulfur. Sulfur can be used as…

Q: The study of detecting small quantities of substances in samples would most likely be performed by a…

A:

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.