O 234 Th е + -1 234 Ра 91 90 O 234 Ра 230 4 Ас + Ac 91 89 O 175 Pt 4 Не + 2 171 Os 76 78 O 14 14 В + 6 -1 2)

Q: 4. Balance the following equations by the redox method, include all the steps of the procedure.…

A: Step 1. Write down the -29c1-4ab9-867c-62d2d5ac22a3-0-0 style='text-decoration: underline; position:…

Q: Peak A has a height of 172 mm and a width at half height of 14.7 mm. Peak B has a height of 85 mm…

A: Given :-  Height of Peak A = h = 172 mm  Width of Peak A at half height = w1/2 = 14.7 mm  Height of…

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A:

Q: a student reacted 14.6 kg of aluminium metal with excess platinum(IV) bromide solution. After the…

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Q: Which of the equations is NOT CORRECT? A B D y2 - gR w? - GM R2 %3D y2 -GM y² _ GM w? -

A: D is not correct

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A:

Q: 2. Do your observations support the principle that mass is conserved in a chemical reaction, that…

A: “Since you have asked multiple question, we will solve the first (Q2) question for you. If you want…

Q: Label the following parts of the chemical equation below: coefficient, subscript, products,…

A: Solution:

Q: Experiment 11: Decomposing Baking Soda 7. A student collects the following data when decomposing an…

A: The decomposition reaction involves the breaking of a larger molecule into smaller molecular units.…

Q: Ascorbic acid (C6HsO6) is also known as Vitamin C. How many molecules of CgHsO6 does a Vitamin C…

A: In this question, we want to determine the Molecules of C6H8O6  How we can determine, you can see…

Q: Beryllium #3 #3 #3 Add Here! Aluminum #3 #3 #3 #3 Add Here! Phosphorous #3 #3 #3 #3 Add Here! Oxygen…

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A: Mass spectroscopy is a technique which determines the mass to charge ration of various ions present…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.66 mL sample taken…

A: Given data,Volume of H2SO4=6.66mLVolume of water=50mLMolarity of NaOH=0.4643MVolume of NaOH=31.52mL

Q: Using the balanced equation from Question #8, how many grams of lead will be produced if 2.54 grams…

A: Given, 2PbS + 3O2 ---------->  2Pb + 2SO3 mass of PbS react = 2.54 g mass of O2 react = 1.88 g…

Q: Katie heats her hydrate to remove the water and obtain the anhydrous cobalt (II) compound CoCl2. Her…

A: Molar mass of H2O is 18.02 g/mol. Molar mass of CoCl2 is 129.84 g/mol. Mass of water removed can be…

Q: Based on this information, what was the mass of the sample before and after heating? (Grams)

A: Mass of sample before heating = 31.909 - 30.453 = 1.456 gm

Q: Identify the correct product(s) for the reaction below. 1. BH3•THF 2. НО, NaOH а. OH Ob. OH Oc. с.…

A: The above reaction is hydroboration - oxidation reaction. In this reaction an alkene forms alcohol .

Q: Gaseous methane (CH reacts with gaseous oxygen gas (O,) to produce gaseous carbon dioxide (CO,) and…

A:

Q: A student obtained 2.111 g of a mixture containing four components. After performing separation by…

A: Mass of the mixture = 2.111 g After performing separation by chemical and physical methods masses of…

Q: The most common source of copper (Cu) is the mineral chalcopyrite (CuFeS2). How many kilograms of…

A:

Q: A) a 10.00g unknown sample with a formula of CxHY was analyzed by combustion analysis. The sample…

A: The values are given as follows:

Q: 41. Add the correct coefficients to properly balance this equation. C10 H16 + Cl, → C+ HC1

A: Equation is balanced when the number of elements are equal in both sides of the equation.

Q: 2 NazPO4 ( ) + CaCl2 ( ) – NacI ( ) + Ca3(PO4)2 ( ) Fill in the remaining coefficients to properly…

A: sodium phosphate reacts with calcium chloride to form sodium chloride and calcium phosphate…

Q: Which one of these equations contains an error? 234 Th 90 234 Ра 91 e + -1 234 Ра 91 230 Ас + 89 4…

A: The equation that contains error has to be identified.

Q: Now if z is the initial mass of magnesium and y is the initial mass of aluminum, the total number of…

A:

Q: Mass of Crucible 42.424 g Mass of Crucible + Lid 47.6894 g Mass of Crucible + Lid + Ba 49.7842…

A: Mass of crucible + lid = 47.6894 g Mass of crucible + lid + barium = 49.7842 g Mass of barium =…

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A: Balanced chemical equation are those in which number of atoms on both side of equation are equal.

Q: Melissa says the formula for hydrochloric acid is HCI. Wyatt says the formula is H₂C1. Who is…

A: Given Hydrochloric acid

Q: Balanced Chem Eq

A: The raw chemical equation can be written as follows: I2  +  KOH  →  KIO3  +  KI

Q: Mass of H₂O b.o Mass of CO2 g Similarly, determine the mass of CO₂ produced from the mass change in…

A: we have to calculate mass of H2O and mass of CO2.

Q: Ascorbic acid (C,HgO6) is also known as Vitamin C. How many molecules of CsH;O6 does a Vitamin C…

A: GivenAscorbic acid  C6H8O6Mass of ascorbic acid = 1000.0 mg1 mg = 10-3 g=0.001 gMass of ascorbic…

Q: Part 3 In a reaction (R¡), 194.2 g of copper sulfide, CuS, react with 92.31 g of oxygen gas, O2. R1…

A: Limiting Reagent: Reactant on which the chemical reaction dependent or that limits the chemical…

Q: Image uploaded solution is not allowed please dear expert

A: 2.) first reaction is C3H8(g) + O2(g) -> CO2(g) + H2O(l)To balance C on both sides multiply…

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Q: is-(CH2CHCHCN)n

A: molar mass =( W / moles    Weight = 755.9 gm = 0.7559 Kg   Moles = molecules / avagadro number…

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Q: If 4.95 g of A reacts to produce 8.95 g of C, what is the mass of B? Express your answer with the…

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Q: How is accuracy and precision related to errors incurred in the chemical analysis?

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A: Step 1: Assuming all the water is evaporated, we need to cool flask before weighing as hot flasks…

Q: I am stuck on question 4, I found everything

A: The objective of the question is to determine the weight in grams and weight percentage of magnesium…

Q: 11. When the equation 3 _H2 +_ N2 - _NH3 7 is correctly balanced using the smallest whole numbers,…

A: