halogens TAL LE IA 12A Be Na Mg Kla Rb Sr |S Ba Fr Ra -| :0 KCI Br At

Q: (a) 2 Fe+3 Cl2-- 2 FeCla Fe%= Fe%D Cl= Cl= Mass=D Mass=

A: Recall the reaction, 2Fe + 3Cl2 -----> 2FeCl3

Q: Directions: Complete the table below. Hypothetical Mass No. No. of p+ No. of n No. of e- Atomic no.…

A: A pure substance that is made up of a no. of atoms having equal no. of protons in its nucleus is…

Q: H 2A 3A 4A SA 6A 7A He LI Be ƏN 1 0N 3 8 Na Mg 3B 4B 58 6B 7B r 8B - 18 28 AI Si PS CI Ar K Ca Sc…

A: In period as moving from left to right, atomic radius decreases due to decrease in nuclear charge.…

Q: 8A H 2A 3A 4A SA 6A 7A He Li Be BCNOF Ne Na Mg 38 4B 5B 68 78 88 - 18 28 AI Si P S CI Ar K Ca sc Tiv…

A:

Q: 1A 8A H 2A 3A 4A 5A 6A 7A He Li Be BCNO F Ne Na Mg 38 4B 5B 6B 7B -88 - 1B 28 AI si P S CI Ar K Ca…

A:

Q: 1) Bu,CuLi ? 2) Mel 3) NH,CI, Hạ()

A: Organic reactions with Gilman reagents

Q: Aluminum 13 (AI)_ 13 Hydrogen (H) 1 1 Making anion Sulfur (S) 16 16

A:

Q: Which of the following elements would you expect to have properties most similar to those of…

A: Given elements: a) Cu b) F c) Na d) Cr e) S

Q: H 2A 3A 4A 5A 6A 7A He Li Be ƏN 3 O N 8 Na Mg 38 4B 58 6B 78 r 88 ¬ 18 28 HI SI P S CI Ar K Ca Sc Ti…

A: First write the Complete electronic configuration of atom.

Q: radidactive research, particulary in studies mass (in mg) oudsoud g of Na, 32PO, after 40.0 days?…

A: Radioactive decay follow first order kinectics. Half life = 14.3 days

Q: 9) 2Mn(NO,); + 5NaBiO, + 16HNO, → 2HMNO, + 5Bi(NO,), + 5NANO, + 7H;O 10) 4H;C,04+ 2KMNO, → 8CO, +…

A: Oxidation describes the loss of electrons by a molecule, atom or ion. Reduction describes the gain…

Q: A 6.700-g hydrate of sodium sulfate, Na2SO4-nH2O loses 2.896 g of its mass upon heating. The mass…

A: In this question, we will determine the value of n ( where n is the number of water molecules )…

Q: The largest element of the following is O Tungsten O Molybdenum O Germanium O Krypton O Chromium

A: As we go from left to right and top to bottom in a periodic table there is a change in the…

Q: Which two elements on the periodic table are in the same period? O Sn and Rb O K and Ba O F and Cl O…

A: The periodic table is divided into 18 groups and  7 periods.(i)  The 18 vertical columns that goes…

Q: Table 1: Molar masses of common rock forming elements Atomic Mass (amu) 28.09 Element Oxide (1)…

A: We can identify the valency of oxide are as follows Suppose the oxide formula is = MaOb(=2) Here,…

Q: a) Calculate the approximate percent abundance of each isotope (Chlorine). Rel. Int. (molecular…

A: Answer. Abundance of an element is known as the percentage of atoms with a certain atomic mass found…

Q: 13 What is the mass of carbon which reacts with 223 g of lead oxide? 2PBO + C 2Pb + CO, 6 g 12 g 24…

A: 1 mole of a substance is equal to its atomic mass or molecular mass expressed in grams. The atomic…

Q: 1A 8A H 2A 3A 4A SA 6A 7A He Li Be BCNOF Ne Na Mg 38 48 5B 6B 7B - 8B - 18 28 AI Si P S CI Ar K Ca…

A: Electronegativities increase from left to right across the periodic table, because of the increase…

Q: Why is it important, in carbon dating, to consider the ratio of carbon-14 atoms to other carbon…

A: Applying carbon dating principle i.e . ratio of C-14/ C-12 . As shown my handwriten solution.

Q: Which of the following radii comparisons is incorrect? A) Sr Se E) Sn > Sn*

A:

Q: B15.3 The graph shown represents the relation between charge of accumulated copper ions Q and the…

A: Introduction: According to Faraday's first law of electrolysis, the quantity of ions deposited at…

Q: .763 Za" (ag) +2+2n(s) -166 A*() + Alja) Mg*(a) +2e Mgla) O zn Osn

A:

Q: Calculate the mass percent of 2.50 moles of NaOH in 0.900L of water at 25 °C. (The density of water…

A:

Q: 1. Nu OH RAH 2H*, H,0´ RH 2. H*, H,0 RT Nu Nu 00 → R^H Nu

A: This is the nucleophilic addition reaction of aldehyde

Q: 157.) A compound was analyzeel and wos faund to contain the following percentages of the elemunts…

A: Firstly  calculate the moles by constructing the hundred gram of the compound.

Q: Find thi onidotion numbun ok the undenlinıd atomi +3

A: When a hydrocarbon reacts with oxygen then, it will form carbon dioxide and water and liberate huge…

Q: Na Mg Al Si CI Ar 19 20 21 25 22 23 Ti 24 26 27 28 29 30 31 32 33 34 35 36 K Ca Sc V Cr Mn Fe Co Ni…

A: We have to find which among have the similar chemical properties

Q: Zn + HNO, Zn(NO3)2 + NHNO, + H,O KI + HSO, + MNO2 K2SO4 + H2O + b + MNSO. PbS + 02 PbO + SO2

A:

Q: 1A 8A H 2A 3A 4A 5A 6A 7A He BCNO FNe Li Be Na Mg 38 4B 5B 6B 7B 8B - IB 2B AI Si P S CI Ar K Ca sc…

A: Given  Name of atom  = Sodium atom  Complete electronic configuration = ?  Name of atom = Lithium…

Q: 3. FeSO, + K,Cr,0, + H,SO, → K,SO, + Cr.(So.), + Fe,(SO.); + H,0 4. MNSO, + PbO, + H,SO, → HMNO, +…

A: Oxidation number or oxidation state basically indicate the electrons lost or gained by atom.  For…

Q: 1A BA H2A 3A 4A SA 6A 7A He Li Be BCN OF Ne Na Mg 38 48 58 68 7888 18 28 Al Si P S Cl Ar K Ca Sc Ti…

A:

Q: why

A: Given,Mass of the sample = 1.0 g1.0 amu = 1.0 g/molFrom the mass spectrum given, the sample have…

Q: 1A 8A H 2A 3A 4A 5A 6A 7A He Li Be B C NO F Ne Na Mg 38 4B 5B 6B 7B 8B - 18 28 A1 Si P S CI Ar K Ca…

A: Write group and period by using valence electron configuration --

Q: A 1.000g mixture of As4S6(s) and AS4S4(s) was burned in excess O2. The products were As406(s) and…

A: The balanced chemical equation for the reaction between As4S­6 (s) and As4S4 (s) is shown below.…

Q: o 2}H + 2 }n → He o ŞLi + n+He + {T 41 p + 3D +He 1, 4. 1, o D + {T → He + o 37 1, He + T → He + 20…

A: Since in any reaction, 1) total mass number of the reactants = total mass number of the products  2)…

Q: Determine the mass percentage of F in C6H11OF3. A. 36.50% B. 37.33% C. 39.54% D. 40.67% E. none of…

A: Mass of one mole of Carbon, Hydrogen, Oxygen, and Fluorine are calculated as follows,

Q: Calculate the dimensions in (mm) of a cube containing 1 mole of solid phosphor Given: Density of Pe…

A: Molar Mass of P = 30.97 g/mol Density of P = 1.82 g/cm3  Volume of cube = (side)3  Side of cube = ?

Q: 1A BA H 2A 3A 4A SA 6A 7A He u Be BCNO F Ne Na Mg 3e48 58 68 78 r 8e- 18 28 R Si S CI Ar KCa sc TI V…

A: Groups and periods The vertical columns in periodic table are called groups. The horizontal rows in…

Q: How many aluminum atoms are there in 3.50 grams of Al₂O₃? (At. Wts.: Al = 27, O =16) a. 4.13 x 10²²…

A: Mass of Al2O3 = 3.50 g Molar mass of Al = 27 g/mol Molar mass of O = 16 g/mol Molar mass of Al2O3 =…

Q: IA BA H2A 34 4A 5A 6A 74 He F Ne U Be BCNO No Mg 38 48 58 68 7838 18 2e Al Si P S Cl Ar K Ca Sc Ti V…

A: In the periodic table, elements in the same group ( top to bottom ) has same number of valence…

Q: 33 - Which of the elements has similar chemical properties with sulfur (S) element? O A) Xe O B) Rb…

A: The element which has a similar chemical properties with the Sulfur element to be determined.

Q: एमरखन 120 लो गाणकीं aso 240 1ons. Ble0 00 12ut the Oea albue n the Giuph1gee

A:

Q: 1A H2A Li Be Na Mg 3B 48 58 68 7B K Ca Sc This ion is a(n) 8A 3A 4A 5A 6A 7A He BCN OF NE Si P S Cl…

A:

Q: calaulate the mass of Fes formed whn 9.42 9 of Fe reacts with 8.505 ofs Fe Cs) +ZS csj→ feszcs) +2S…

A: Option is none. Amount of FeS2  is formed 15.94g

Q: the measured EA of Na is -53 KJ/mol. What is the physical meaning of the fact that the EA is a…

A: EA means the electron affinity .  The amount of heat is released when 1 electron is added to the…

Q: Chlorine has two naturally occuring isotopes, CI-35 (approximately 75%) and CI-37 (approximately…

A: Mass spectrometry is an important tool for the determination of the molecular mass of the compound…

Q: atoms of each type are represented in 4Mg:(PO)2? *

A:

Q: 1A 8A H 2A 3A 4A 5A 6A 7A He B C NO F Ne Li Be Na Mg 3B 4B 5B 6B 7B - 8B¬ 1B 28 Al si P s CI Ar K Ca…

A: A monatomic ion with a charge of +1 has an electronic configuration of 1s2 2s2 2p6 3s2 3p6. This ion…

Q: Smallest Largest 1A H 2A neon Li Be Na Mg 38 4B 5B 6B 7B8B K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Rb…

A: Given element are Neon,  Krypton, helium, argon We have to arrange the given  atom in increasing…

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.