17. SbS3 + Fe Sb Fes -> 18. Mn02 Al -> Al203 + Mn 19. As203 co C -> As 20. Cs + H20 CSOH + H2 21. HgCl2 Fe Hg FeCl3

Q: 7. The hardness of water (hardness count) is usually expressed in parts per million (by mass) of…

A: Option (a) is the correct option. Answer is explained below. Ans: Molar concentration of Ca2+ ion in…

Q: НО A НО Me OMe НО НО В Me Me MeO ОН 1. m-CPBA (1 equiv) CH₂Cl₂ 2. NaH, Mel, DMF 3. HClO4, H2O НО с…

A: Epoxidation occurs in more electron dense centre

Q: 1. PBr, 2. NaNg, THF HO 3. Pd/C, H2 (Excess) 4. Mel (Excess) 5. Ag,0, H20 `NH2 NH2 A B D

A: For the given sequences of reaction of the given alcohol, we can predict alkene as the major…

Q: d) H3PO4 + 5 HBr PBR5 + 4 H2O e) 3 Fe(OH)2 + 2 H3PO4 Fe(PO4)2 + 6 H2O f) 2K + Br2 - 2 KBr

A: Given :-  a) H3PO4 + 5HBr → PBr5 + 4H2O  b) 3Fe(OH)2 + 2H3PO4 → Fe3(PO4)2 + 6H2O c) 2K + Br2 → 2KBr…

Q: 1. 2. 3. Pb(NO3)2 _Cl₂ + C3H6+ + ______K₂CrO4 --> KCI + KI --> _0₂ --> PbCrO4 + ____I₂ _CO₂ + H₂O…

A:

Q: OH A) 1. LIAIH4, 2. H3O* B) 1. CH3CH2MGBR, 2. H3O* C) PCC D) H2NO3 /H2SO4 E) Zn(Hg) + HCI/A

A: In organic reactions is the chemical process in which the organic functional as the reactant…

Q: а. Cr (aq) + Cl; (9) — Сr207? (ад) + CI (аq) V b. Ni2+ (aq) + Ca(s) — Са* (аg) + Ni(s) V

A:

Q: D. _KCIO3(S)---> _KCI(aq)+ _02(g) E. Fe203 (s) + _H2O(I)---> _Fe(OH)3 (s) F. Ca(OH)2 (aq) +_HNO3…

A: In a balanced chemical equation, the number of moles of each atoms on both sides of the equation is…

Q: 17. ZnSO4 + Lİ2CO3 →_ ZnCO3 + LizSO4 18. V205 + _ CaS → СаО + —VzSs 19. Mn(NO2)2 + _ BeCl2 →…

A: The given unbalanced equations are as follows --- ZnSO4   +   Li2CO3  -->  ZnCO3  +  Li2SO4…

Q: A. [FeBr(NH3)2(H2O)][Cu(CN)4] = %3D B. [PtBrCI(SCN)(H20)][AgCl2] = C. [Zn(H20)4]a[ZnCl(OH)2(S2O3)]2…

A:

Q: p tthe uolume of 8.00M Hason inat is that solu te cabio9 a lmal). contains 9.809 a of HeSDu

A:

Q: Balance the following equations:

A: Since we only answer up to 3 subparts, we will answer the first three subparts only. Please resubmit…

Q: In a reaction, Al2(SOa (aq) reacts with K3PO4 (aq), what will be the product(s)? O AlgP, K(SOA2…

A:

Q: 8. Fe203 + CO -----> Fe + CO2

A:

Q: Reactants Products 1 Al + NaCI Fe+ H,SO, Al + AGNO, 4 Pb + Fe,O3 Ni + SnCl, 2. 3.

A:

Q: Foष्णे बल हैन्प eArवाको कलट धटलंनना मान h्छ त नhe foीosणnकु ा? 2 Fe3t + snzt →2 Fezt + snot ( Sकय…

A: Given-> 2Fe3+(aq) + Sn2+(aq) -----> 2Fe2+(aq) + Sn4+(aq)

Q: What would happen to CaBr2 + Ni(NO3)3 --> NiBr3 + Ca(NO3)2 , if another CaBr2 was added?

A: According to Le-Chateliers principle, if reactant added in the reaction mixture then the reaction…

Q: Identify the oxidizing and reducing agents in the following:

A: The oxidizing agent and reducing agent in the chemical reactions has to be identified. (a) The given…

Q: F3C Br2, Fe A HNO3, H2SO4 В NO2 HNO3, H,SO4 Br2, Fe NO2 C HO3S' D H3CO

A: The above given reactions are aromatic  electrophilic substitution reactions, in which benzene ring…

Q: (e) NaOCI/ACOH N₂H, KOH, DMSO (c) 2 CH Br, Mg H₂O + (g) Sia ,BH H₂O₂, OH 2¹ (a) Br. (i) FeBr 3 (h)…

A:

Q: 26. ZnF, - 27. CCI, - 28. SeH, - 29. Al(OH), - 30. K,O -

A: We have to name these inorganic compounds.

Q: r in an ore exists as Cr2O3, and is converted quantitatively to BaCrO4 (253.33 g/mol). Calculate the…

A: According to the question, Cr in an ore exists as Cr2O3, and is converted quantitatively to BaCrO4…

Q: Br CI CI Br AIC1, Br NBS, A Brz H2SO4, A H2, Pd/C tert-BuO NaBH4 H3O+ peгoxide FeBr3 Group 2

A: Intramolecular Friedel-Crafts Alkylation The nucleophile is the aromatic ring, and the electrophile…

Q: What is happening in this chemical reaction.  6KNO3 + C7H4O + 2S --------> K2CO3 + K2SO4 + K2S +…

A: Gunpowder is a combination of charcoal, saltpetre and elemental sulfur.

Q: 14. Cr (BrO3)3 + Ta2(MnO4)5 → Cr2(MnO4)3 + Ta (BrO3)5 15. Nazs • 8 H2O + A → Na2S + 8 H2O = 16.…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: 4. K2Cr20, + KI + H3PO4 I2 + CIPO4 + K3PO4 + H20 5. K,Cr,0, + Fes04 + H2S04 - Cr2(S04)3 + Fez(SO4)3…

A: The oxidation state method tells about the number of electrons present in the reaction. Half…

Q: 3 Fe(s) + 4 CO2(g)  -------Fe3O4(s) + 4 CO(g) Keq =   . (b) Fe2O3(s) + 6 HCl(g)  ------2…

A: To solve this problem we have to write the equilibrium expression of given equations .    Note : In…

Q: 4. K;Cr20, + KI + H;PO4 5. K,Cr,O, + FeSO, + H,SO, I2 + CrPO, + KPO4 + H;0 Cr;(SO,); + Fe,(SO,); +…

A: A balanced chemical reaction is that in which the left-hand side contains an equal number of atoms…

Q: CH3 Na,Cr207 ? HO H2SO4, H20 H3C CH3 H2SO4 Na -Cr-O-Cr-O Na 2 HO-Cr-OH

A: It is a oxidation of alcohol to ketone by sodium dichromate in sulphuric acid  Which finally gives…

Q: Calculate the percentage of Fe in pure iron(II) ammonium sulfate hexahydrate: (NH4)2[Fe(SO4)2]• 6…

A: Mass percentage is given by, Mass of the elementMass of the compound ×100

Q: Question attached

A: % by mass Fe2O3 in the sample is Number of mol of CaSO4 yielded is Now, one mol of CaSO4 is…

Q: + CrPO, + 4. K;Cr20, + KI + H;PO4 5. K,Cr,O, K,PO, + H20 Cr;(SO,); + Fe,(SO,); + K,SO, + H,0 I2 +…

A: A balanced chemical reaction is that in which the left-hand side contains an equal number of atoms…

Q: 2F(4) +1.51 MnO (a)8H(a9) + $e° Me?"(mp) + 4 H,01) +1.36 C+2e -2cr (a) +1.33 CHo(a) + 14 Hr"(mp) +…

A: The more positive is electrode potential the element will be strong oxidizing agent.

Q: An ore is analyzed for manganese content gt converting the manganese to Mn3O4 and weighing it. If a…

A: Weight of sample = 1.52 g   Yield of sample  = 0.126 g

Q: 1. Zn(Hg)/HCl 2. C12/as 3. СНЗО-/to А C 1. NANH2 1. 2(СH3)ВН/THF 2. Н202/ОH-, Н20 H 2. СНЗСН2Br 3.…

A:

Q: Humber 1 2 Mg= 0= d speaker notes Ca= 0= Reactants Mg+ 0₂ Ca+ 0₂ Yield → → Mg= 0= Ca= 0= Products…

A: The Chemical reaction follows the law of conservation of mass. According to the law of conservation…

Q: The roasting of Cu2s(s) produces Cu(s) and SO2(g). What mass of sulfur dioxide is produced by the…

A: Ans e is correct

Q: Select the best possible products for the given reaction. Don't worry about balancing. Li₂S + PbSO4…

A: Different types of reaction: a) Precipitation reaction: In precipitation reaction an insoluble salt…

Q: (a) MnO2+ CO - Mn2O3 + CO2 (b) Cu2O+ Cu + CO (c) C3H5(NO3)3- CO2+ H2O + N2+ O2 (d) FeS+ 02- Fe203+…

A: Given unbalanced reactions are : Balance the following reactions = ?

Q: 9. Cu20 + O2 -----> CuO

A: Ans The given chemical equation  Cu2O + O2 -------------------> CuO

Q: Cro, (aq) + Cu(5) — Cr(ОH)3(9) + Cu(ОН)2(6) [basic] 2- 2Cro, (aq) +8H,01)+3Cu(s) +4e –2Cr(OH), (s)…

A: Balanced basic equation. Is this the correct way to balance a basic equation?

Q: PbSO4 O Pb(NO3)2 (ag)+ Na2SO4 (ag)→PBSO4(s) + 2NaNO3(ag) O Pb(NO3)2(aq) + BaSO4 (s)→PBSO(s) +…

A: The precipitate of compounds form when two aqueous solution of one compound is mixed with aqueous…

Q: 4. HFag) 2 Agʻaq) + Znu C2Hlg + Ozia) 5. 2 Ag + Zn²*taq) 6. 2 C2Halg) + 2 H;O 7. Cu + 2 Hzig CHag 8.…

A: let us consider a general reaction, aA+bB→cC+dD The equilibrium constant for a given reaction is…

Q: (a) MnO2 + CO - Mn203+ CO2 (b) Cu2O + Cu + CO (c) C3H5(NO3)3→ CO2 + H20 + N2+ 02

A:

Q: A mixture containing only FeCl3 and AlCl3 weighs 5.95g. The chlorides are converted to hydrous…

A:

Q: 1) chlorides formed by  chromium( can be more than one answer) a) Cr3Cl b) CrCl3 c) CrCl 2 d) CrCl4…

A: 1.  Cr atomic no. is 24 and configuration of valence shell is 3d5 4s1. It exists in +2,+3,+4.  so…

Q: Balance the following equations:

A: Balanced equations are a). b).

Q: b. N2 c. Zn(OH) d. NOz е. LiH f Fe:O4

A: Oxidation number is the partial or imaginary charge present on an atom in the compound.  1.H2CO3 a)…

Q: 1. Determine the percentage of hydrogen peroxide in the solution sample.  2. naturally occurring…

A: Two numerical problems based on redox reaction, which is to be accomplished.

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.