The half-lives of different radioisotopes are given in the table. Half-life (min) 12 37 potassium-44 22 indium-117 43 How long would it take, in minutes, for the amount of potassium-44 to decrease from 80.0 mg to 10.0 mg? time: Radioisotope argon-44 lead-196 min

Q: 52.1429 Mass of evaporating dish 9.97mL Volume of KCI solution (use about 6 mL but record actual…

A: It is given : mass of evaporating dish = 52.142 gVolume of KCl solution = 9.97 mLMass of evaporating…

Q: How much stomach acid was neutralized by the 4.3628 g tablet? Select an answer and submit. For…

A: (i) First, find the mL of NaOH needed for each mL of stomach acid by using the data given for the…

Q: What is 89.2+62.3 estimated?

A:

Q: Question attached

A: An atom consists mainly of three subatomic particels that are electron, proton, and neutrons. When…

Q: Salem plans to deposit $2200 every 6 months for 15 years to save for his son's higher education. The…

A: The objective of the question is to calculate the future value of a simple annuity where Salem…

Q: Which block in each of the following drawings of a balance is more dense, red or green? Explain.

A:

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: We have to convert the above equation in .

Q: Express in similar unit and in lowest term 3,000 grams to 5 kilograms

A: First of all we need to convert the given ratio in fraction then convert both the values in similar…

Q: Balance the following equation by filling the gaps with appropriate numbers. OKOH + OH3PO4 OkaPO4 +…

A: We have to predict the balanced chemical reaction.

Q: What is the mass, in grams, of 28.66 mL of acetone? Express your answer using four significant…

A: To calculate the mass of a substance, you need to know its density. The density of acetone…

Q: What is the major product of the following reaction? Br NaOCH3 heat

A: In this question we have to tell the major organic product of the reaction.

Q: ubtract 3.58 x 10^-2 from 1.41 x 10^11 and report answer in g.

A: so the answer will be 140.99*109 g which can be considered as 1.41*1011 g

Q: A new car has a mileage rating of 41.0 miles per gallon. How many kilometers can it travel on…

A: The mileage of the car is 41.0 miles/gallon.The volume of gasoline is 418 milliliters.The conversion…

Q: Mg ati

A: 1. Alkyl halide react with magnesium to give alkyl magnesium halide (Grignard reagent).

Q: covert  1 x 10^3 to standard notation

A: A number expressed in the form  a × 10b is called scientific notation . To convert a number from…

Q: A muon (a subatomic particle with a mass of 1.884 x 10-25 g) traveling at 635 m/s: m

A: The objective is to determine the distance covered by the subatomic particle.Given:Mass of muon…

Q: Distinguish the difference between a coefficient and a subscript?

A: 1.Subscripts are part of the chemical formulas of the reactants and products which indicates the…

Q: What is the accounting equation? a ) Assets = Liabilities + Equity b ) Revenue =…

A: The accounting equation explains the fundamental principle of double-entry accounting, stating that…

Q: What is the standard SI unit for mass?

A: Mass is a measure of the amount of matter in a substance. Mass measures the amount of matter…

Q: 2H3O2)9 • 6 H

A: The gravimetric factor as,

Q: "grams of hydrogen" by to get the units "atoms of hydrogen" ?

A:

Q: Sucrose or table sugar has the formula Call On What is the mass of 1.00 x 100 molecules of sugar.…

A:

Q: 1. What are the basic units of length, mass, volume, and temperature in the SI system?

A:

Q: What is the mass in grams of KBr in 0.400 of a 0.350 M solution?

A: Given 0.400 L of 0.350 M KBr solution.

Q: What is the molar mass of Si3OH6 in g/mol? Answer in decimal form, without units, to 2 decimal…

A:

Q: Using examples, explain the difference between a physicalproperty and a chemical property.

A: The characteristics shown by a substance both physically and chemically is called a property.

Q: 1.063 eur per liter into usd per gallon

A:

Q: A/ An is a combination of two or more Select one: Mixture; Elements O Compound; Elements Mixture;…

A: Universe is made up matter and energy. Matter is further classified in mixture , elements and…

Q: Best Value for % Purity How did you arrive at the best value?

A: The best value is calculated from the average of the good data values.

Q: Which of the following is the correct sequence of weighing using an analytical balance? I. Press…

A: The steps given are,

Q: Which of the following is the correct sequence of weighing using an analytical balance? I. Press…

A:

Q: C CI Br you

A:

Q: Would the mass percent of copper in (either) copper oxide be greater than, less than, or equal to…

A: The amount of moisture will add to the total weight of Copper oxide first. so the mass percentage of…

Q: (3.0 mg) x (0.023 g) =

A: The given milligrams can be converted into grams as

Q: A plot of NO₂ versus time is linear. Using this information, identify the factor by which the rate…

A:

Q: 50.00 ml of sulfuric acid was put in a 250 mL flask.  100 mL of 2.50 mol/L potassium hydroxide was…

A: Given that,  Volume of H2SO4 in 250.0 mL flask V1 = 50.0 mL Molarity of H2SO4  solution M1 = ?…

Q: Mass of Container + Sample 2.70 Mass of Container 1.95 48.00 % of Sand % of Ammonium Chloride 16.00…

A: Given: (1) Mass of container + sample = 2.70 g (2) Mass of container = 1.95 g   (3) % sand = 48.00…

Q: will save this response. Question 6 JOunbon &of 18 An unknown tiprotic acid (HX) is itrated agalsta…

A:

Q: On average, a drop of water has a volume of 50 microliters. What is this volume in dekaliters ?

A: Units are measurements of particular value.  Measurement is determining how large or small a…

Q: In an experiment a student used a 50 mL volumetric flask to prepare her copper solution but in…

A: step 1:  For making standard solutions, one must take care of the quantity that is to be taken…

Q: Perform the calculation and record the answer with the correct number of significant figures.…

A: In addition, substraction , multiplication or division, the answer should have the same number of…

Q: PERCENT WATER IN A HYDRATE DATA/CALCULATION SHEET NAME 1.. crucible, cover, BaCl2 2H2O _\8, a0G! g…

A:

Q: Question 3 Review the following statements regarding the top-loading balance and select all…

A: Following are the true statements for top-loading balance .

Q: Perform the calculation and record the answer with the correct number of significant figures.…

A: When addition or subtraction is carried out, the number that has a minimum number after the decimal…

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.