If the AH for a reaction is positive, reaction must be exothermic. Select one: O True O False

Q: 10. True or False (use your periodic table/data sheet when appropriate) j. HCO; (aq) is an…

A: Given: j) HCO3- is an amphiprotic substance. k) Vapor is any substance in the gaseous state that is…

Q: If 70.0 grams of carbonic acid are sealed in a 2.00 L soda bottle at room temperature (298.15 K) and…

A:

Q: 4 3 D

A: Axial and Equatorial are types of bonds found in the chair conformation of cyclohexane .The chair…

Q: ! * F1 2 W CH3 3 I ||| F2 CH3 CH3 CH3 # 3 E Identify the monomer(s) used in the production of this…

A: Addition polymerization is when the monomer molecules bond to each other without loss of any other…

Q: 7 1 5.3Li +1H → 2 He+ O a. He O b. 2, 1H O C. 3 O On d. 4 4Be

A: A radioactive reaction can be balanced by summing up the atomic number and mass number on both sides…

Q: 15. The density of silver is 10.49 g/cm. a. What is the volume of a silver coin that has a mass…

A: Density: Density is defines as the mass per unit volume of a substance. Those substance which has…

Q: 4 Fe + 3 0, 2 Fe,0, Vhat volume (liters) of O, is required to react with 1.7 moles of Fe? 1 mole O.…

A: The mole concept is used to solve such problems. The mole concept was proposed by Avogadro. It…

Q: Complete the ده شد following scheme 13 تعلم القايل أن 1 ?

A: Carboxylic acids react with dicyclohexylcarbodiimide (DCC) and amines to give amides.

Q: 6. (aq) (aq) BaCl, (aq) + H,O (1) +

A: Redox reaction is a simultaneous reduction of one compound and oxidation of another compound.…

Q: material. 1. CH3MGB. (2 equiv.) 2. Hо" CH3

A:

Q: Chemistry Question

A: (a) The freezing and boiling point of water in Fahrenheit scale is 320 F and 2120 F. The freezing…

Q: 4) _ H2 + O2 0 H20 Pb(OH)2 + AIBR3 + Al2(SO4)3 5) HCI H20 + PbCl2 6) K2SO4 O KBr + 7) СН4 + O2 0 CO2…

A: To balanced the given chemical equations we have to make each element equal on both , reactant and…

Q: а. (еxcess) H3O* b. С. H2O ОН ZI + エーZ

A: The question is based on the concept of organic reactions.   We have to identify the product formed…

Q: For each compound below, draw in all missing lone pairs and indicate whether each lone pair is…

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Q: NO2 H2 (excess) cat. Pd/C O,

A:

Q: 2. A chemistry teacher searching for his golf ball in the trees this summer found a magical pool of…

A: Given that the mass of the liquid is equal to the mass of 455 golf balls So mass, m = 455 golf balls…

Q: Which of the following molecules are antihistamines? Check all that apply. View Available Hint(s) 0…

A: Antihistamines are a class of drugs used to treat allergy symptoms such as sneezing, itching, and…

Q: Me Me Me HO „Me Me Me Me- Me OH Me "Me

A:

Q: What is wrong with the following statement? "The results of the experriment do not agree with the…

A: There are some experiments who's value comes near to the true value or the theoretical value.

Q: The K. for CO (g) + 3 H2 (g) = CH4 (g) + H2O (g) is 9.17 * 10-2. If a 3.5 L vessel is set up with…

A: Normally for those chemical reactions , in which Kc value more than value of Qc , Reaction direction…

Q: f) 1- 2- H* Br 3- H*, H₂O 1-03, CH₂Cl2, -78 °C 2- CH3SCH 3 C8H1402

A:

Q: Br2, CCI4 HBr CI KMN04

A: First reagent is a brominating agent, addition of bromine will take place and in the second reaction…

Q: A. Draw all significant resonance structures of each compound below, using appropriate arrows, and…

A: Here we have to draw the resonance structure of the given compound and then we have to indicate the…

Q: nt. how many days will it take f

A: For any decay, the time required can be calculated as  t = (1/k) ln (No/N) Where t = time required…

Q: The below drawing shows the equilibrium vapor pressure of a pure liquid. Select the drawing that…

A: The initial diagram of the equilibrium given is, Given: A non-volatile solute is added to the…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.