150 decays by positron emission with a half-life of 124 s. (a) Give the proper symbol of the product of the decay. X = Y = Z=

Q: 7. Find the AHrxn for the reaction: 3C(s) + 4H₂(g) → C3H8(g) Use these reactions with known AH's:…

A: Hess's law states that the heat of the reaction is fixed and it is independent of the path of the…

Q: What term describes this particle model? A. weak base C. weak acid Q Search B. strong acid D. strong…

A: -> Weak acids and weak bases are not totally ionized in solution some particles must be in non…

Q: What is the pH for (2.65x10^0) M ammonium chloride aqueous solution (ammonium hydroxide,…

A:

Q: A mixture is 18.7% NaCl, 20.6% CaCl2, and 60.7% NaBr. What mass of the mixture contains 0.454 moles…

A:

Q: The reaction shown involves an acid chloride, draw the organic product and select the inorganic…

A: A reaction is shown below We have to draw the major organic product. We also have to give the…

Q: Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO (s) +…

A:

Q: Identify the reagent(s) you could use to accomplish the following transformation. Select all that…

A: This question belongs to basic organic reaction.

Q: The specific heat capacity of solid copper metal is 0.385 J/gK. How many joules of heat are needed…

A: Specific heat capacity of Copper metal = 0.385 J/gK mass of block of copper (m) = 1.15 kg = (1.15 ×…

Q: What are the principles of flame ionization detection? Was it a good choice for these analytes?

A: FLAME IONIZATION DETECTION  (FID)

Q: Which of the following is a standard state? O for a gas, it is 750 Hg for a liquid, it is 25°C for a…

A: Which of the following is a standard state?

Q: Write the complete electron configuration for the potassium atom. Using the noble gas abbreviation…

A: Potassium atom (K)

Q: ard C app.101edu.co Provide the correct IUPAC name for the compound shown here. Chey Question 7 of…

A: We have write down the IUPAC names for the given molecules.

Q: are those anti, syn or unknown?

A: The reagent added across double bond is Br2.

Q: A 11.7 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid. If…

A:

Q: Prepare 4-phenyl butyric acid

A: We have to prepare 4-phenylbutyric acid.

Q: 9.40) In the previous problem, you saw that there were two chiral carbons ín…

A: To find no. Of sterioisomers we must know the conformation of chiral centre whether it is R or S

Q: Which acid has a lower pH? O 1 M acetic acid 0.8 M acetic acid 0.5 M acetic acid 0.3 M acetic acid…

A:

Q: 3) Given the titration curve for a titration between ammonia, NH3, and hydrochloric acid, HCl: A)…

A: Since the question contains more than 3 subparts, we will answer only first 3 subparts for you. In…

Q: Consider the titration of 100.0 mL of 0.200 M acetic acid (K₂ = 1.8 x 10) by 0.100 M KOH. Calculate…

A: We have to calculate the pH of solution for the given titration The titration is weak acid + strong…

Q: Please circle the better nucleophile in each pair or or ОН

A:

Q: What is the hybridization of the central atom in the xenon tetroxide (XeO4) molecule?

A: Hybridization of the molecules can be determined by first determining the steric number which is…

Q: Rank these elements according to first ionization energy. Sn, Xe, Rb, Te, Sr, I. Solve and explain…

A: There are total 18 groups and 7 periods in the periodic table.  The elements in a group shows…

Q: 1. How many MOLECULES of carbon tetrachloride are present in 2.56 moles of this compound ?…

A: 1 mole of any compound contains 6.022 x 1023 molecules. we will use this information to solve these.…

Q: Find the equilibrium constant for the reaction below. At eq, Ecell are both equal 2 Fe³+ +31 = 2…

A:

Q: Suppose a 250. mL flask is filled with 1.0 mol of N₂ and 0.70 mol of NO. The following reaction…

A:

Q: Provide the correct common name for the compound shown here. O

A:

Q: Use the References to access important values if needed for this question. When 18.0 mL of a 5.34×10…

A: If Ksp > Reaction quotient (Q) , precipitate doesn't form  If Ksp <  Reaction quotient (Q) ,…

Q: Arrange the following elements in order of increasing metallic character: silicon magnesium…

A: To solve this problem we have to know about periodic trend of metallic character.

Q: Select the stronger base and then draw its conjugate acid below. CICH₂CH₂O or CH3CH₂O- . You do not…

A:

Q: In a stoichiometry problem, you are asked to find the number of moles of a reactant that will form 3…

A: An equation for a chemical reaction is said to be balanced if both the reactants and the products…

Q: The complex ion Cu(NH3)4 is formed in a solution made of 0.0500 M Cu(NO3)2 and 0.400 M NH3. What are…

A: This question belongs to dynamic equilibrium.

Q: Draw a polymer chain segment of a copolymer formed when the two monomers given below are polymerized…

A: Copolymer:- Polymer which is derived from two or more types of monomer.

Q: You have 75.0 mL of 0.14 M HA, a weak acid. After adding 38.0 mL of 0.10 M NaOH, the pH is 5.50.…

A:

Q: с d a b Oi, a Reagents: Oa, d a, f, d QUESTION 11 How would you carry out the following…

A: Carboxylic acid on reduction with LiAlH4 gives alcohol which on treatment with Dess Martin reagent…

Q: The element bromine would be expected to form ( ) covalent bond(s) in order to obey the octet rule.…

A:

Q: what is the oxidation of 2-propanol

A: We have to write the oxidation of 2-propanol.

Q: Using the Henderson-hasselbalch equation, calculate the volume of 0.2 M acetic acid and 0.2 M Sodium…

A: Given that: pH = 4.5 pKa = 4.74 Concentration of CH3COOH = 0.2 M Concentration of CH3COO- = 0.2 M…

Q: Divides the solid and gas phases and represent sublimation solid to gas and deposition gas to solid…

A: It is a graphical representation of the physical states of a substance under different conditions of…

Q: O Macmillan Learning Above what Fe²+ concentration will Fe(OH), precipitate from a buffer solution…

A: pH of buffer solution = 8.67The Ksp of FeOH2 = 4.87 × 10-17

Q: Complete the data table below:   n (moles) V (L) 0.100 1.223 0.200 2.445 0.300 3.668 0.400 4.891…

A: This question is based on mole concept.

Q: 8. Consider the reaction: CO + 3H2(g) ↔ CH4(g) + H2O(g) At 500 K, the equilibrium constant for…

A:

Q: If you wanted to anodize 1.00 mol of Al to Al₂O3, how many mol of electrons would you need to…

A: Anodizing is a process where an anode (Here Al) is electrolyzed and on the metal surface the oxide…

Q: Solution used to remove the white, hard to remove, substance that sometimes appears on sinks and…

A: Scale is the accumulation of minerals over time on a surface which leaves white or gray deposits.

Q: A 19.90 gram sample of iron is heated in the presence of excess iodine. A metal iodide is formed…

A:

Q: each chemical reaction listed in the table below, decide whether the highlighted atom is being…

A: To solve this problem we have to identify the elements oxidized  and reduced

Q: Of the following, which is the most stable alkene? O O

A:

Q: QUESTION 29 What would be the best choice of reagent(s) to perform the following transformation? ?…

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: Which ones would undergo mutarotation? Check all that apply. 1,3,6-tri-O-methyl-D-fructofuranose…

A: Mutarotation is a process in which an anomeric form of a sugar changes to another anomeric form when…

Q: What is the reaction product when benzene reacts with CH3CH2Cl to form AlCl3 acting as a catalyst?…

A: Friedel Craft reaction: It is a well-known reaction for the alkylation of benzene in presence of…

Q: 1.The following results have been obtained for the density of nitrous oxide in grams per liter at…

A: Given: The density v/s pressure data at 0.0 oC of nitrous oxide N2O , is Pressure Density…

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.