Cu20(s) -170.7 92.4 CuO(s) -156.1 42.6 Cu(s) 33.2

Q: In developing the concept of electronegativity, Pauling used the term excess bond energy for the…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Zn (s) | Zn* (1 M, aq) || Cu²* (1 M, aq) | Cu (s)

A: Theoritical cell potential is E°cell.

Q: 1) ВаО? 2) Pb(NO:)2 + KI 3) Cs + Br2 4) Al + Fe(NO3)2

A: Given 1) BaO2 ------> 2) Pb(NO3)2 + KI ------> 3) Cs + Br2 ------> 4) Al + Fe(NO3)2 -------

Q: 1.008 4. He 4.003 10 Be 6.941 9.012 LI B C N 10.81 12.01 14.01 16.00 19.00 20.18 15 F Ne 11 12 13 14…

A:

Q: Ca,(PO.) + SiO, +C→ CaSiO, + CO + P

A: The given chemical equation is--- Ca3(PO4)2 + SiO2 + C ------> CaSiO3 + CO + P To balance this…

Q: 2(8), 2(8) N,O;(g) → 2 NO,(g) + ¿ O2(g) ¿0g]/10-² M [NO,]/10-2 M [0,]/10-² M 1.24 0.92 0.64 0.16…

A: Calculate the concentration at 70 min....

Q: Which of the following is not a property of metals? They are good conductors of electricity. A They…

A: The question is to identify which of the of given properties is not a property of metal -

Q: what are coinage metals?

A: Coinage metals are group of three transition metals of group 11 of periodic table.  The coinage…

Q: Part 1: Color the 4 blocks of the table a unique shade. Be sure to label each block by its proper…

A: The modern periodic table is based on the increasing atomic number of elements.  In the given…

Q: What type of metal is this? Aluminum, Copper, Lead or Iron?

A: Specific heat of metal in cal/g˚C is 0.220 Specific heat of metal in J/g˚C is 0.920.

Q: O+Cl, (g) = PCI, (g)

A: Dear student I have given answer to your question in the image format.

Q: 19.964 g of zinc (7.133g/mL) is placed in a graduated cylinder containing water, the final volume of…

A:

Q: 3+(aq) +3 e Al(s) E° = -1.676 V %3D 2+(aq) + 2 e Zn(s) E° = -O.763 V %3D

A: Ecell for the given reaction is

Q: In an experiment, 0.237 g of zinc metal reacts to produce 0.501 g of zinc oxide. Using the Law of…

A: Given, Mass of zinc metal = 0.237 g Mass of zinc oxide = 0.501 g

Q: Which term listed is a property of a non-metal?  high density brittle shiny  conducts electricity

A:

Q: . ___________ glass fragments into small squares, or“dices,” with little splintering when broken.

A: Tempered glass is made by heating a glass pane above its transition temperature and then rapidly…

Q: Is 2 elements and 1 compound a combustion

A: Given: Two elements and one Compound is present for a combustion Reaction To find: whether the above…

Q: Copper vessels kept for a long period of time get coated with a greenish substance. This greenish…

A: Given,  Copper vessel kept for a long period of time get coated a greenish substance. This greenish…

Q: Cs(s) + FeS(aq)

A:

Q: A sample of calcium chloride, CaCl2, has a mass of 27.8 g. What mass of chlorine is present in the…

A:

Q: b,PO, wi (aq) (s) (g)

A: Given compound is Rb3PO4 . Chemical name of  Rb3PO4  is Trirubidium phosphate .

Q: In an experiment, calcium carbonate reacted with different volumes of hydrochloric acid in water.…

A: Calcium carbonate reacts with hydrochloric acid to form the carbon dioxide gas.

Q: Cr³*(aq) → Al³*(aq) + Cr(s)

A: In Cell notation  Oxidation half reaction is written in left side while reduction half reaction is…

Q: e. Cul2 g. HgCl2 i. HgO k. FeS

A: e. CuI2 - Copper(II) iodide

Q: use the web to determine the amount of aluminum used in the united state in a single year. What is…

A: A question based on use of Al, which is to be accomplished.

Q: A sample of stainless steel contains 10.5% chromium by mass. What mass of chromium, in grams, is…

A: Given information,             Stainless steel sample contains 10.5% chromium by mass.…

Q: Why a piece of wood is a mixture?

A: Wood is a substance made up of cellulose, hemicelluloses, and lignin.

Q: The volume of an irregularly shaped solid can be determined by immersing the solid in a liquid and…

A: Volume of irregularly shaped mineral quartz can be determined by immersing the solid in a liquid and…

Q: 11. Cro, 12. Ba(C,H,02)2 13. ICI,

A: Please find the below attachment.

Q: Cu 5) Cu(NO3)2 AGNO, Ag + à +

A: _ AgNO3 + _ Cu -------> _ Cu(NO3)2 + _ Ag

Q: A student has a mixture of two liquids. Liquid A boils at 112 °C and Liquid B boils at 145 °C.  In a…

A: Distillation is the process of separating components of a mixture based on different boiling points.…

Q: 16. What is 20.0 °C in K and "F? A: 293.2; 68.0

A: The temperature 20.00C is to be converted to other scales of temperature.

Q: A match is lit and held under a cold piece of metal. The followingobservations are made: (a) The…

A: Physical changes are those in which change is physical appearance takes place like smell, heat etc.…

Q: Br AICI CE

A: Friedel-Crafts Alkylation Replacement of an aromatic proton with an alkyl group. Done through an…

Q: Brass is an alloy of copper and zinc. Varying the mass percentages of the two metals produces…

A: Mass of Yellow zinc = 135 g Brass = an alloy of Cu and Zn Yellow zinc = A brass (34-37)% Zn by mass…

Q: certain alloy with a density of 11.5 g/cm3 contains 55% iron by mass. a) How many pg of iron would…

A: Density is defined as the mass per unit volume. It is represented by rho . Its relation is as…

Q: When a mixture of aluminum powder and iron(III) oxide is ignited, it produces molten iron and…

A: According to law of conservation of mass, mass can neither be created nor be destroyed in any…

Q: Classify these properties of the metal lithium as physical or chemical. Physical Chemical

A: In the given question we have to classify the physical and chemical properties of lithium metal.…

Q: Which of the following used to be more precious than gold or silver, due to difficulties in refining…

A: The metal that was more precious than gold or silver due to difficulty in refining it was Aluminum…

Q: Using the given data, calculate: 1)Amount of CaCo3 2)Mass of CaCO3 in tablet 3)% mass of CaCo3 in…

A:

Q: What is the all chemical properties

A: Characteristics which helps us to differentiate one substance from another are known as properties.…

Q: Classify substance as a pure substance or a mixture. If it is a pure substance, classify it as an…

A: Anything that occupies space and has mass is termed as matter.

Q: Write net ionic equations for the following reactions:

A: 1. write the balanced chemical equation. 2. write the states(s, l, g, aq. ) for each substance. 3.…

Q: Mntt + Fe ot+HeO +2 Mn04 + Fe

A:

Q: Describe how Goldsmith rules are used to classify Elements

A:

Q: What is the best estimate for the volume of the piece of gold in this image? ml 25 25 20 20 15 15 30…

A: Determine the volume of gold covered space?

Q: She begins to set up the problem but leaves one step blank because she is unsure. What should she…

A: The moles of Cl2 in a known mass are, number of moles=given massmolecular mass…

Q: Which of the noble gases other than radon would you expectto depart most readily from ideal…

A: Ideal gas equation is given by- P: Pressure of the gas. V: Volume of gas. n: number of moles of…

Q: 7. Ca(s) / Ca+2(aq) // Cr+3(aq) / Cr(s) 8. Mg(s) / Mg+2(aq) // Fe*2(aq) / Fe(s)

A:

Q: Metal or Nonmetal Explanation: State of Matter b. Metal or Nonmetal Explanation: Luster Metal or…

A: Metal : It is a type of solid substance which is a hard , shiny and very good conductor for heat…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.