The following items detail a decay chain from radioactive Uranium-235 to stable Lead-207. What is the nature of ionising radiation produced at each step? a. 235 °92U→231,Th + ? b. 231 90 Th → 231 "91 Pa + ? 231 91 1Ра — 227 c. '89Ac + ? d. 227 '89Ac- 227 go Th + ? 227 е. oTh - → 22399RA + ? 90 f. 223 88R - + 219 86Rn + ? 219 215 84 g. 86Rn – Ро + ? 215 84P0 + h. 211 82Pb + ? 211 i. 82 Pb – 211 83B¡ + ?

Q: Why was it important that researchers use large sample sizes? O a) It controls for all variables…

A: Using large sample sizes in research is important because it helps to reduce the impact of…

Q: 200 cal to L

A: We have to convert 200 cal to L as follows in step 2:

Q: Balance stoichiometry water react with tallow

A: Tallow is the solid fatty substance obtained from milk of  animals or direct from animals like goat…

Q: A typical person has an average heart rate of 71.0 beats/min calculate the given questions. How many…

A: It is given that a person has an average heart rate of 71.0 beats/min and the beats a person have in…

Q: Define chemistry and explain how burning wood isrelated to chemistry.

A: Сhemistry is the   sсienсe  thаt  deаls  with  the соmроsitiоn, рrорerties,  &  struсture  оf…

Q: Can anyone show me the solution? 0.45 l =    dl 1dl =    l 740 cc =  l 33kg =     g 1000 ul =…

A: Note:  1 l = 10 dl = 1000 cc 1 kg = 1000 g 1 ml = 1000 ul 1 cc = 1 ml 100 cc = 1 dl

Q: On December 1, 1783, Jacque Charles became the first human to pilot a non-tethered hydrogen balloon.…

A: Given :

Q: What cut of meat is typically pan fried at 150-160°C for 5 minutes on each side, and what are two…

A: When a cut of meat is typically pan fried at 150-160o C for 5 minutes on each side, it undergoes…

Q: ive the three characteristics of precipitation

A: Precipitation is liquid or solid water falling from clouds to the Earth's surface or formed on…

Q: 125I + ____        125Te

A:

Q: Based on the constant given below, Kw = 1.0 x 1014 M²= [H3O*][OH] what is [H30*] if [OH"] = 4.2 x…

A:

Q: 35 kJkJ to calories

A:

Q: 30560 m2 to hectares

A: 1 hectare is equal to 10000 m2

Q: During a demonstration, a tennis ball has its temperature raised to 390 K from room temperature at…

A:

Q: p= ?, m = 65 kg, V = 653 m3

A:

Q: Which of the following would be the major product of the following sequence of reactions? CH3MGBR HO…

A:

Q: Calculate the reduced mass of NaCl. The relative mass (amu) of Na and Cl are 22.98977 and 34.96885,…

A:

Q: 8. The four gases above are under the same conditions. In other words, each container has the same…

A: We will use concept of ideal gas equation. PV= nRT

Q: 1. For the reaction below: a. b. Predict the products and show the mechanism using curved arrows.…

A: To predict the products and show mechanism using curved arrows.

Q: OH 1.PBO 2. Mg OH

A:

Q: Convert 595 cal to units of J.

A: While converting from one unit to another of same dimension, a conversion factor is to be…

Q: Dehydration of body tissues is a chemical change  True  False

A: Dehydration of body tissues is a chemical change or not --answer is given below.

Q: Q1: Convert the quantities 300 Ib • s and 52 slug/ft' to appropriate SI units.

A:

Q: If the height or mass of an object is increased, its ____ energy will increase.

A: On increasing the height of the mass ,it's potential energy will increase

Q: convert 6.55 Mm to Gm

A: Meter, millimeter, gigameter, yard and miles are some common units of distance. These units can be…

Q: Carl is approaching the Canadian border on a trip from Vermont to Montreal, Canada, and the gas in…

A: Given : price of gas in US = $ 2.45 USD per gallon  Price of gas in Canada = $ 1.40 CAD per litre…

Q: A student walks over to the balance area with an Erlenmeyer flask in their hand. Before reaching the…

A: Erlenmeyer flask is a conical flask used for performing titrations in the laboratory.

Q: 1-

A:

Q: What are all of the si units

A: SI units are International system of units.

Q: 2Na(1) + CaCl,(s) → Ca() + 2NaCl(s) Na (s) → Na (g) The following process occurs in a high school…

A: A chemical change occur when a chemical reaction occurs which is characterized by some bond break…

Q: Understanding the definitions of heat and work A mixture of gaseous reactants is put into a…

A:

Q: For gases under certain conditions, there is a relationship between the pressure of the gas, its…

A: Given data  Ideal gas law        PV = mRT whereP = absolute pressure of the gas (Pa)V = volume of…

Q: C CI Br you

A:

Q: minute 2 Hydrated copper(i) sulphate crystals were heated

A: Answers to all the parts of question 2 given in the following step

Q: A tank with 43.2 kg of water is leaking at a rate of 0.0135 kg/s How many hours will it take until…

A:

Q: While in Europe, if you drive 125 km per day, how much money would you spend on gas in one week if…

A: The important conversions that will be used in this question are 1 km = 0.621  mile 1 euro = 1.26…

Q: Part 1: what is the total calories that the man would gain if he only ate 225 grams from his steak?…

A: Given, mass of steak = 16 oz

Q: A tire pressure gauge reads 33.0 pounds per square inch . How many kPa is this? Remember that…

A: Given, 33.0 Psi  Convert to = _____KPa ?

Q: Life-cycle assessment (LCA) is defined as the study of resource consumption, emissions, and their…

A: Now LCA is basically concerned with the effects on the environment and the energies released or…

Q: Progress Potential Energy 100 150 200 250 300 350 400 450 500

A: the potential energy of the products is  350 unit.

Q: A process starts with a 26.47 kg reactant mixture and ultimately produces 11.19 kg of product,  9.45…

A: Given:Initial reactant mixture: 26.47 kgProduct produced: 11.19 kgBy-products: 9.45 kgWater: 5.83 kg…

Q: This graph represents the density of water. Sketch and label a line representing: A- a metal B-…

A: The density is defined as the ratio of mass per unit volume. density = massvolume d = mv

Q: 45. One of the most desirable of the old British sports cars was the beautiful Triumph Vitesse…

A: To calculate the volume of carbon-dioxide we first have to calculate the amount of fuel used in the…

Q: A chemistry student needs 5.00 g of acetyl bromide for an experiment. She has available 1.0 kg of a…

A: we have to find mass of solution students should use

Polymerization Kinetics

Polymerization is a chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that diverge in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes. Polymerization is generally classified into step-growth and chain polymerization. Polymers are categorized into linear polymer and cross-linked polymers that are produced either by condensation or additional polymerization.