The molecular shape of TeCl4^2¯ is __?

Q: The simplest primary alcoho! consists of . .carbon atom/s (a) 1 (b) 2 (C) 3 (d) 4

A:

Q: 3. СНО + _(3a) + NH.OH → _(3b) +Agl+ NH&NOs + H2O

A: When benzaldehyde is treated with silver nitrate in ammonium hydroxide solution , which is also…

Q: Why is ammonia a covalent bond?

A: Nitrogen reacts with hydrogen to form ammonia. The molecular formula of ammonia is NH3. In ammonia…

Q: What is the oxydation number of sulfur in sulfite ion, SO3(2-)?

A:

Q: 5. What is the electronegativity of C considering SiC is 11% ionic and Xsi = 1.8?

A: A bond's percent ionic character is the amount of electron sharing between two atoms; limited…

Q: Write the chemical formula for tungsten(VI) nitride

A: Given compound is : Tungsten(IV) nitride  Chemical formula of tungsten(IV) nitride = ?

Q: Which atom in the Br-F molecule has a partial negative charge (8¯)?

A: In a polar molecule the more electronegative atom attracts the shared pare of electrons and partial…

Q: A(n) ___________ is the smallest unit of a compoundformed by the union of two or more atoms

A: A molecule is an electrically neutral group of two or more atoms which are held together by chemical…

Q: 1. Determine the common name, the types and number of atoms, and the molecular structure of the…

A:

Q: If the electronegativity of the elements is 1.8 and 4.0 eV, respectively, what is the ionic…

A: According to the pauling's scale (XA - XB) = √Δ where  XA = electronegativity of element A XB =…

Q: What is the mass percent of water to the the anhydrous? When calculating the formula weight, do we…

A: A question based on water of hydration, which is to be accomplished.

Q: Using the standard enthalpy of formation data , calculate the bond energy of the carbon-sulfur…

A: Bond energy or bond enthalpy represents the bond strength, which measures the quantity of energy…

Q: Draw the 2d Lewis structure for SiO2

A: The basic steps to draw the lewis structure are- 1. Determine total no of valence electrons. 2.…

Q: 3. Calculate the enthalpy of formation of carbon dioxide in the following reaction: C (s) + O2 (g) →…

A:

Q: What is significant about the following reaction?  4As(s) + 3O2(g) → As4O6(s)

A: Arsenic is a heavy metal that exists in 3 metallic forms, alpha or yellow, beta or black and gamma…

Q: How many grams of Thallium Sulfate, Tl2SO4 would 1.0 g of Thallium Iodide give?

A: Stoichiometry calculations are used for the detection of the mass of a particular compound from the…

Q: (8) → 2 AgC1, H,N, SO, (s) + H20(1)

A: Mass

Q: e the lattice energy of MX.

A:

Q: (1 сн,СH,MgBr "CHз (2) н*

A: The reactant given is an epoxide which is represented as follows:

Q: H,O,), + H,S Cus 2 Hоно

A: Balanced equation:

Q: What is the chemical Nare of He follawing: . TisiO4 2. WLse Og); 3. Na Sz

A: Ans . 1. Titanium silicate.   2. Tungsten selenite.   3. Dinitrogen trisulfide.

Q: Describe the structural features and type of chemical bonding that exists in solid sodium chloride.

A: Sodium chloride is a water soluble compound which composed of sodium and chloride ions. It is a…

Q: What is the formula of a compound containing K* and O2 ions?

A: A chemical formula of an ionic compound can be formed by criss-crossing the valencies of ions.

Q: Explain how the reaction N2(g) + O2(g) > 2NO (g) proves that nitrogen and oxygen are diatomic…

A: In the above reaction, there is an involvement of two diatomic elements N (Nitrogen) and O (Oxygen).…

Q: Calculate the Delta H for the reaction of fluorine gas, F2(g) with H20(I) water to form 2HF(g) and…

A: Spontaneous reactions always undergo some heat change which can be +ve or -ve. This heat change also…

Q: Which of the following contains one or more covalent bonds Cao O NaCl BaBr2 CO

A:

Q: H,0 NH „NH co, H,SO, (cat)

A: ->H2O can acts as nucleophile because it has loan pair.

Q: Look up tellurium 1Z = 522 in the periodic table and predict how many covalent bonds it is likely to…

A: Covalent compounds are formed by sharing of electrons in between two or more atoms. In the covalent…

Q: 4. The chemical formula for sodium nitride is

A:

Q: 6) H: - _CO2 → _CsHa +, _O2 How many grams of water are needed to make 6.012g of oxygen?

A: _H2O +_ CO2 -->_C3H4+_O2Balance equation2H2O +3 CO2 -->C3H4+4O2

Q: What is the lewis structure for SiO2?

A:

Q: 1) O3 b. CCH 2) H,O с. 1) О, 2) Н,О KMNO4 d.

A: We have to give the product of given reaction

Q: What is the shape of a molecule of SiH2O?

A: Formula for determining the hybridization of central atom :-  x= (V+M-C+A)/2  V = valence electrons…

Q: Draw the Lewis structure of PBr3 and determine if the molecule is polar or nonpolar

A: Phosphorus tribromide is a polar molecule. It is a colorless liquid.

Q: What is the difference between the conductivity of solid ionic compounds and aqueous ionic…

A:

Q: Do you think that the formation of [CoCl4]2-(aq) is endothermic or exothermic? Explain.

A:

Q: NaBr + Cl2 NaCl + Br2 *

A: This is single displacement reaction or substitution reaction in which chlorine anion pushes out the…

Q: Write the full electron configuration of Si, Si+4 and Si-4. How many valence electrons are in each…

A:

Q: 2 BaO2 → ВаO + 102

A: A chemical equation is said to be balanced if  atoms of all the molecules  are equal on both side of…

Q: What is the central atom in phosphoric acid (H3PO4)?

A: The structure of phosphoric acid is,

Q: Which type of reaction causes the mercury (I) ion to form metallic mercury  and mercury(II)?

A: Since in converting from Hg+ to Hg and Hg2+ the Hg+ ion is getting oxidised as well as reduced…

Q: Given these molecular weights of only nonpolar and non-ionic molecules consisting of only hydrogen…

A: Melting point is directly proportional to number of the carbon atoms. Longer the carbon chain higher…

Q: What is the mole ratio between H2 and O2? A)1:2 B)2:1 C)2:2 D)4:2

A: Answer - The correct option is (B)  2:1 Mole ratio - A mole ratio is a conversion factor that…

Q: What is the molecular shape of SrBr2? Why? What is the lewis structure of SrBr2 Is it polar or non…

A: Covalent bond:  It is formed due to the sharing of electrons. In general, between two nonmetals, a…

Q: 1. ВНз, THF ? 2. H2О2, NaOH ten +en ten HO HO Он HO O 4 О1 O 3 O 2

A: This reaction occurs here is hydroboration reaction followed by oxidation. Hydroboration addition is…

Q: THE CHEMICAL FORMULA OF THE FOLLOWING COMPOUND •Sodium hydroxide •Potassium permanganate

A: A chemical formula indicates the elements and their proportions in a compound .

Q: What is the bond angle in carbon dioxide, CO2?

A: Carbon dioxide is a linear molecule.

Q: a. CaO C. NF3 e. SrH2 b. NazS. d. (NH4)2SO4 y sulfate

A: The ionic compound are those which dissociates into ions when dissolved in aqueous media.

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.