Pb2+ SO42- = PbSO4 2+ and 2- cancel each other out. Pb2+ Cl- = PbCl2 Where does the 2 from Cl2 come from?

Q: thesis project). 50. Give the number of protons and electrons is following: (a) Sg molecule. (c) H2S…

A: a) The molecule given is S8. Since the atomic number of S is 16. Hence number of protons in each S =…

Q: Mg(NO3)2 Na2CO3→ Ca(NO3)2 Na2CO3 → -> Sr(NO3)2 NazCO3 → Ba(NO3)2 Na2CO3 → ->

A: The group 2 metals like Mg, Ca, Sr, Ba reacts with Sodium carbonate to give the corresponding metal…

Q: What is the correct order of size (from smallest to largest) of K, K*, Ca and Ca2+? O A. K < K* < Ca…

A:

Q: Which of th 1. When th 2. After the C7H502H)=

A: NH4NO3  is a salt of Strong acid and weak base  NH4NO3 + H2O  --&gt; NH4OH    +   HNO3…

Q: ne charge of the underlined atoms below? eCl3 2SO4

A:

Q: a. Name the following compounds according to systematic and common nomenclature. N. N-CH3 N. 18 19…

A:

Q: How many protons are there in one molecule of dichlorine heptoxide?

A: The molecular formula of dichlorine heptoxide is Cl2O7. Its structure is shown as follows:

Q: TSO SH DMF, SN2 OTS xs KCN

A:

Q: Provide correct names for the following compounds. (a) (b) CI (c) (d) LOCH3 (e) (f) OCH3 Br Br NO2

A: Systematic Name: It is a standardized name given for a chemical compound in systematic manner. Any…

Q: (b) kg m² s-2 h. (c) Ax - A(mv) > 47 (d) Bond length (e) n; - nf (in the H atom)

A: Introduction :  We have to tell about these . As per company norms we can not answer more than 3…

Q: Calculate the number of protons, neutons and electrons in ³⁰K 19

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: (a) What is the Kb of the acetate ion?(b) What is the Ka of the anilinium ion, C6H5NH3+?

A: The Kb value of acetate ion has to be given.

Q: B(OR)2 HS Br Pd(PPH3)4 5 mol %, NaOEt, benzene Br MeO SH PdCl₂(PPH₂)₂ Cul TEA, THE Pd/Phosphine…

A: In Heck coupling reaction alkyl or arylhalide is treated with activated alkene in presence of Pd…

Q: Ka for ammonium ion (NH4 1 ) is 5.7 X 10210. Find Kb for ammonia (NH3).

A: is a conjugate base of as it is formed after the loss of a proton by . is the dissociation constant…

Q: ow many protons and electrons are in N5+ unit and N5N5 salt?

A: Given: N5+ unit and N5N5 salt

Q: M+1 and M+2 relative eak). Use the isotope d. C10H19CI e. CioH19Br

A:

Q: Give the structural formula of the compounds K to M. (МеO),CH DIBAH, -78°C 30 min CSA, CH,Cl2 → K OH…

A: Concept : 1) Nucleophilic substitution followed by SN2 reaction with Hydride.  2) Deprotonation…

Q: In which of the following species is the difference betweenthe number of protons and the number of…

A: Atomic no. is equal to the no. of protons present in the species.

Q: Assuming the charge on each O in PO43- is -2, what is the charge on the P? Select one: 3 -3 8 -5 5

A: Oxidation number - The number of electrons lost or gain by an atom when atom is in reacting stage…

Q: Select tne NaCN :: HCN JDHDMC H2N HO. CN OH OH CN CN CN

A:

Q: MCQ 149: A covalent bond is the sharing of A. protons B. electrons C. neutrons D. none of above

A: The atoms combine to each other by a chemical bond by attraction. The bonds can be two types namely…

Q: Pbis + SOao, (0.30M) + 24gCl → PbSO4 + 24g + 2Cliae) (0.20M) PbSO4 + 24gs + 2C1ia) 4(ag)

A: Concentration of pure solids, pure liquids are omitted from equilibrium constant expression because…

Q: 1) which is not included on the Em spectrum           A) Uv   B) radio waves      C)sound waves.…

A: Hi, we are supposed to answer one question. To get the remaining questions solved please mention the…

Q: Ion with 27 electrons.     55Mn2+   63Cu+2    50Cr2+    58Ni3+   24Mg2+

A: Given ions: 55Mn2+   63Cu+2    50Cr2+    58Ni3+   24Mg2+ We have…

Q: What is the identity of L?     CrO42-     AsO43-     PO43-     Hg2+

A: Qualitative inorganic analysis involves the detection of the anions and cations present in…

Q: N- 1) MCPBA 2) Heat 1) HNO3, H2SO4 2) Zn, HCI 1) aniline, H* 2) Na(CH,CO),BH 1) NaOH/H,O, hear 2)…

A:

Q: HILIC can be used to separate cations of the same charge, true or false?

A: HILIC, or Hydrophilic Interaction Liquid Chromatography, is an HPLC technique for separating polar…

Q: There ave Seueral stalde Isutepes of Mg as as several 1ons well possible of mg Each of these istopes…

A:

Q: Name the following compounds:   Li3P   N2O5   MgO   MgBr2   NaCl

A:

Q: y Skilm. Whing Drag each label to the appropriate target. • View Available Hint(s) Reset Help +2 Rb…

A: For a neutral atom, the atomic number (proton number) is equal to the number of electrons. A…

Q: How many px electrons are in Ag atom?

A: Electronic configuration of an atom is defined as the arrangement of electrons of the atoms in its…

Q: ŞLi +?→Be + dn }C1 + ?→ 1s + 3He Be + He →3 He + ? BBr + }H -→ ? + 2 3n

A: The nuclear reactions given are Li36 + ?→Be47 + n01Cl1735 + ?→S1632 + He24Be49 + He24 →3 He24 +…

Q: Which names are correct for 102 and HIO2, respectively? A lodate and hypo iodous acid B lodite and…

A: The correct name of given formula is given below.

Q: Find A-D and F D 1. O, 2' (CH,)2S Na,Cr,O, 1. A 2' H,O+ „MgBr B H2SO4 1. F 2' H,O+ HO-

A: We have to find A-D and F as follows in step 2:

Q: What is the correct order of size (from smallest to largest) of K, K+, Ca and Ca²+? O Ca2+ < K+ < Ca…

A: Given,  The size of atoms or ions : K, K+ , Ca and Ca2+ increasing order is:

Q: How many protons, neutrons, and electrons does the79Se2- ion possess?

A: The arrangement of the elements based on the atomic number in rows and columns provides the periodic…

Q: HBr A) Br2 но 1.) BH, / THF 2.) H,O2. HO H,SO, H,0

A:

Q: 1. mCРBA, СH-Clz 2. H20, H* Pr 3. NalO4 4. H2N `Pr

A: In presence of m-CPBA formation of epoxide takes place and on hydrolysis wi gets vic-diol. Vicinal…

Q: Given the following reactions:             (I)   M  + Cl2  -->  MCl2;                        (II)…

A: To determine in which cases, M could represent Group 1A elements.

Q: 27 Te value of Ag 9ts ecnstituent element Pzcg) +3C/2cg)→2Pcl3(9) is A)-SB9.2 B) t539.2 C)-373.3…

A:

Q: Consider the pollowing at oms: A BCOEF Number of electrons 888910 9 Number of n atrons 8910 9810 nch…

A: Isotopes are atoms of same element having same atomic number (number of protons ) but different mass…

Q: Which is the correct order of size (from smallest to largest) of K, K+, Ca, and Ca2+? a)Ca2+ < K+…

A: The correct order of size (from smallest to largest) of K, K+, Ca, and Ca2+ has to be arranged…

Q: Which molecule has the greatest mass (and therefore largest size) Potassium permanganate: KMN04…

A: Molar mass of Potassium permanent (KMnO4) = (1*39) + (1*55) +(4*16) = 158   Molar mass of Congo red…

Q: Complete the table, filling in each box with the proper formula.    Ion Ca2+ NH4+ Mg2+ Fe2+…

A:

Q: Q9: Voxelotor's structure is shown below. What would you expect the overall charge of the molecule…

A: An acidic molecule is deprotonated at a pH greater than the pKa value. Given the pyridinium(R-NH+)…

Q: what is the molavity or 201%.1)of Ngraq.s4o bolitiinis C) 0.54 D)o. 69 A) 0. 86 B) 0.14

A:

Q: The presence of 1 nitrogen atom in a compound results in an odd mass for the parent ion because A)…

A: In mass spectroscopy we use this nitrogen rule to determine the presence of nitrogen atom in the…

Q: HCHO, Ka - 1.8E-4 NH CI NH3 HC,H5O2 Ka- 6.5E-5 HBr NaC,H,O2 NaOH NaCl

A: Acidity is the releasing number of which H+ in the water solution. Size of anuon is increased then…

Q: What is the name of (NH4)2Cr2O7 and Pb(HPO4)2.

A: While naming an ionic compound, name the cation first and then its anion.

Q: How did you get xy t alone? when you have ln .264

A:

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.