1. Which of the following statements is correct? * Fuels are always hydrocarbons O Humans do not need fuel, only machines do Fuels react with nitrogen in the air O Fuels release energy when they react 2. Which of the following fuels is NOT a fossil fuel? * O Coal O Crude oil Nuclear Natural gas

Q: A flask that can withstand an internal pressure of 2500 torr, but no more, is filled with a gas at…

A: Given data is as follows: The final pressure of the flask P2 = 2500 torr The final temperature of…

Q: Number

A: Carbonic Anhydrase is used for the reduction of CO2 to Carbonic acid.

Q: Number 2

A: Dear student, we answer three parts in a question. I am answering the first three parts. If you need…

Q: 1. Consider the reaction mechanism given below: A +A A2 fast A, + C ACA slow ACA AC + A fast Which…

A: We have to give the rate of given mechamism

Q: 2) Draw the newman projection for each chair conformation of A and B (1 newman projection per chair…

A: The Newman projection for the chair conformations A and B have been described below. The structures…

Q: Consider the reaction below to answer the following questions. CH3 CH3 H3C H,O НС— ҫ—он + H;C…

A:

Q: 2. Nitrogen has two naturally occurring isotopes: nitrogen-14 and nitrogen-15. The average atomic…

A: Given   Isotopes of Nitrogen   Nitrogen-14   Nitrogen-15   Average atomic mass of Nitrogen = 14.0064…

Q: A certain gas a value of R =.18896 KJ/kg°K and K 1.288. Calculate the value of C, and Cy.

A:

Q: A solution has [OH¯] = 4.0 × 10-. What is the value of [H*] for the solution?

A: Given :- [OH-] = 4.0 × 10-8  To calculate :- [H+]

Q: 1. The noble gas, neon, has three isotopes of masses, 22, 21, and 20. If the isotopes have the…

A: Average atomic mass calculation: (1) Consider the given information is as follows;…

Q: 1. Starting from 1-bromoethane, synthesize ethanenitrile Br CH3CEN 1-bromoethane ethanenitrile 2.…

A: The synthesize of butanamide from ethyne has to be explained.

Q: 1. a) Atoms, ions, and molecules are the three types of particles that make up matter. How are they…

A: Similarities between atoms, ions and molecules 1 -  The atoms, ions and molecules all three are…

Q: An airplane is flying at unknown altitude and the pilot observed that barometer pressure is 65.29…

A: As we go move toward higher altitude the pressure decreases because air less dense at high…

Q: . Tank A initially contains 200litres of brine containing 225N of salt. Eight litres of fresh water…

A:

Q: Calculate Change of Enthalpy- use Table A-14 1. Calcium carbonate breaks down into calcium oxide and…

A: The enthalpy of a reaction can be determined by the enthalpy of the formation of reactant and…

Q: Practice Exercise 2 For each reaction, use Figure 16.4 to predict whether the equilibrium lies to…

A: During an acid-base reaction, the more reactive acids or bases react to form less reactive acids or…

Q: 1. What is the process in which simple food' substances like glucose are broken dom nd the energy…

A: When any food substance is broken to produce energy in the presence or absence of oxygen is called…

Q: Number 2

A: Buffer solution:A solution which can resist its pH when small amount of acid and base is added to…

Q: Number 1

A: In titration of a strong acid and a weak base, the equivalence point will be on the acid side of 7,…

Q: Inoitosidua omoz slupeilw zi) OXto 286M Stoichiometry: Mass-Mass Experimentation has shown that…

A: 1 mole = 6.022×1023 [ Avogadro's number ] Atomic mass :  The mass of 1 mole of atoms of an element…

Q: 1. Given the following reaction: NazS203 + AGB → NaBr + Na3[Ag(S2O3)2] a. How many moles of Na2S203…

A: according to mole concept we easily finds the moles of reactent and products

Q: The following data were obtained for the following reaction at 25°C. What are the rate-law…

A: Chemical kinetics is branch of chemistry in which we deal with speed at which rate of reaction…

Q: 2. Consider the reaction of A Products. Concentration unit is in terms of molarity and time is in…

A:

Q: Number 1

A: Oxidation number or the oxidation state of an element refers to the total number of electrons which…

Q: - solution is made from 0.19 M CH3NH2 (a weak base) and 0.27 M CH3NH3CI. What is the pH of the…

A: Solution-  CH3NH2=0.19 MCH3NH3Cl=0.27MUsing the henderson eqution -GivenKb=4.4×10-4 pKb=-logKb…

Q: Number 1

A: Molten magnesium bromide is electrolyzed.

Q: Number 1

A: Part a:The difference of potential which results in flow of current from higher potential electrode…

Q: 2. a) For each compound show its conjugate base. Lone pairs have been left out but are assumed to be…

A: The chemical specie formed after the loss of hydrogen ion from an acid is its conjugate base.…

Q: Number 1

A: Since silver nitrate is completely soluble in water Hence as per the solubility reaction AgNO3…

Q: Number 2

A: Volume of oxygen = 425 ml = 0.425 L  Pressure = 0.899 atm  Temperature = 24°C = 297K R = 0.082057…

Q: 2. Calculate the pH of a solution containing 0.75 M lactic acid, HC3H5O3, (Keq= 1.4 x 104) and 0.25M…

A: The solution contains a mixture of 0.75 M lactic acid and 0.25 M sodium lactate.

Q: 1. In which of the following reactions would you expect the orientation factor to be more important…

A: To determine which of the below reactions the orientation factor is more important in leading to the…

Q: 1. Predict the major product for the reaction shown here. Draw the complete detailed mechanisn for…

A: There are many bases in organic chemistry. When bases are treated with carbonyl compounds, bases…

Q: 1. Provide the synthesis of the following products by a SN2 reaction. `CN `N3

A: Interpretation - To provide the synthesis of the following products by SN2 reaction-    Concept- SN2…

Q: Number 1

A: A reduction reaction involves gain of electron/s. Due to gaining of electron/s, the oxidation number…

Q: 2) A weak acid has a K,= 6.62 x 10. What is the pH of a solution of this acid that is 2.65 M?

A:

Q: b. 8. Why does the pressure inside a container of gas increase if more gas is added to the…

A: By using gas law we can answer above question

Q: Module 10 Worksheet Date: Name: Peer Leader: For all problems involving calculations, show your…

A:

Q: Preview File Edit View Go Tools Window Help O Sun Aug 8 8:25 PM A bartleby.com A, Theodore E. Brown,…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.