1) 3D0 Example 5: aluminum sulfate Al is +3; SO4 is -2, so the correct formula must be: Al2(SO4)3 2x(+3) + 3x(-2) =0 Again note how each of the numbers is crisscrossed, the 3 from the aluminum going to the sufate, and the 2 from the sulfate going to the aluminum. Exercise: Write the formula for each combination of ions below. OH- HCO3 PO43- Co,2- s2- Na+

Q: in Learning Calculate the number of carbon atoms in 3.681 gallons of octane, Cg H₁g (1 gallon =…

A: 1 gallon = 3.785 l So 3.681 gallons = 3.785 × 3.681 l         Volume = 13.9325 litres = 13932.5 ml

Q: HCL(aq) + Ba(NO3)2 Question: What would the reaction be if the above two formulas were to be…

A: it is displacement reaction, in which cation and anion , Replaced their position.

Q: • Calculate the pH of water sample with hydrogen ion concentration of 3.16 * 10-8 mols/L • Calculate…

A: pH = - log [H+]

Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…

A:

Q: 55.90 grams of Fe(NO3)3 are dissolved in enough water to prepare 900.0 ml of solution. Calculate the…

A: Molarity of a solution is defined as the moles of solute present in one litre of solution.

Q: For the reaction 2 Cr(s) + 3 Pb²*(aq) → 3 Pb(s) + 2 Cr*(aq), what is the value of n in the Nernst…

A: The Nernst equаtiоn рrоvides а relаtiоn between the сell роtentiаl оf аn eleсtrосhemiсаl сell, the…

Q: When the following equation is balanced, what is the coefficient in front of Na2CO3? Al(NO3)3 +…

A: We have to predict coefficient of sodium carbonate.

Q: The ions formed when Mgl2 dissociates in water are A) Mg²+ and 12- B) Mg²+ and I- C) Mg* and I D)…

A:

Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…

A: The given unbalanced chemical change is Iron (s) + Hydrochloric acid(aq) →Iron(II) chloride (aq) +…

Q: Exercise 7. Give the name or write the formula for the following. a. HI (aq) b. HNO₂ (aq) c. H₂Se…

A: a. Hydroiodic acid b. Nitrous acid c. Hydrogen selenide d. Chromic acid e. Per-bromic acid f.…

Q: PRACTICE PROBLEM 2 = Calculate the pH of a solution that is 0. 10 M HC₂H₂0, (K and 0.10 NaC₂H₂0₂…

A:

Q: What volume of 0.0200 M calcium hydroxide is required to neutralize 35.00 mL of 0.0500 M nitric…

A: Calcium hydroxide is a base that reacts with nitric acid to form a salt of calcium nitrate and…

Q: Practice Problem ATTEMPT Identify each of the following as a combination, decomposition, or…

A: The given reactions has to be identified as combination, decomposition or combustion reaction.

Q: Which of the following compounds can be used in to make antacid tablets? Select all that apply?…

A: Acid and base react with each other to form salt and water. In this reaction, the acid and base…

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Write the empirical formula of the given ions--

Q: QUESTION 11 ow many valance electrons, respectively are in Arsenic and Germanium ? D 4 e & 5 e O5e &…

A: Valence electrons are the electrons which lies in the outermost shell of an atom or molecule.

Q: Problem #4 If a wastewater has a soluble orthophosphate concentration of 8.00 mg/L as P (PO4-P),…

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Q: Answer Which of the following equations are NOT balanced? ZnCl2 + NaOH → Zn(OH)2 + NaCl CuCO3 +…

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

Q: Practice Exercise 1The unbalanced equation for the reaction between methaneand bromine is__ CH41g2 +…

A: The reaction given is CH4 (g) + Br2 (l) ------> CBr4 (s) + HBr (g)

Q: Question 1 In the reaction 2A + 3B --> C, how many units of C form when 10 units of A react? 3. 10…

A: In given reaction, 2A + 3B --> C Units of A = 10  Units of C formed = ?

Q: If 4.00 g Fe(NO3)3 is dissolved in enough water to make exactly 545 mL of solution, what is the…

A:

Q: 4. Write chemical equations for the ionization of the following ionic compounds in water. a) KF (aq)…

A: We need to write the chemical equation of the ionic compound in water.  here we are provided with KF…

Q: (CH4+2 02- CO2 + 2 H20] How many liters of CO2 is produced from 4 liters of 027

A:

Q: Which of the following equations are balanced? (Select all that apply.) O C4H10 + 9 0₂ → 4 CO₂ + 5…

A:

Q: Write the formula of the acid formed when each of these acidic oxides reacts with water. 1. Cl,0, 2.…

A:

Q: Word Equation Chemical Equation 26 - 27. N2(g) + H2() + NH3(g) 1 Carbon atom + 2 Oxygen atoms Carbon…

A: Answer: In the following questions, in some word equations are given and we have to formulate…

Q: Each of the following compounds is water-soluble. What ions are produced in water? (Select all that…

A: Water soluble compounds:- Compounds which dissociates/ionizes completely into its constituent ions…

Q: you have an aqueous solution of calcium nitrate, what are the ions in solution?     2Ca+ + NO3-…

A: Mass of 1 mole = molar mass 1 mole = 6.022 x 1023 entities

Q: Exercise 4: 53 g of NazCO, are dissolved in 1 dm' of de-ionised water. Calculate (a) molar mass of…

A:

Q: When 4.7 moles of [Co(NH3)5Cl]Cl2 is dissolved in water, how many moles of ions are in solution? a)…

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Q: Provide a complete arrow-pushing mechanism for the following reaction. Upload 0 О 1. MeMgBr (xs) 2.…

A:

Q: Balance the following equation (lowest whole number coefficients required) write 1 for one. _H₂ SO4…

A: Since, Balanced reaction means that both side number of atom present in equal number. Thus,

Q: Problem 7-76 Write the balanced molecular, complete ionic, and net ionic equations for the reaction…

A: Given,

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A: Given  cation : Fe+2 , NH4+  anion : ClO3- , IO3-

Q: Given the following equation: 2 AGNO3 + CaCl2 --> 2 AgCI(s) + Ca(NO3)2 What is the net ionic…

A: 2 AgNO3 (aq) + CaCl2 (aq) ==> 2AgCl (s) + Ca(NO3)2 (aq)

Q: Chapter 3 Review Which of these is not an empirical formula? O C3H8 O C2H4 O CH3 O CH4

A: The simplest positive integer ratio of atoms present in a compound is known as the empirical formula…

Q: Practice Exercise 1Which is the correct net ionic equation for the reaction ofaqueous ammonia with…

A:

Q: Use algebraic method in balancing the Following chemical Equations: 1.) CH4 + Cl₂ ⇒ CCl4 + HCl 4.…

A: Note - Since the given question is a multipart question hence I solved first three subparts question…

Q: The ions formed when Sr(C₂H₃O₂)₂ dissociates in water are A) Sr²⁺, C⁴⁻, H⁺, and O²⁻ B) Sr+ and…

A: Hello. Since your question has multiple questions, we will solve the first question for you. If you…

Q: ОН -NH What is the oxidation state of the carbon indicated with the arrow?

A:

Q: how many moles of N, are needed?

A: Balanced chemical equation :-  3H2(g) + N2(g) -----> 2NH3(g)   When 3 moles of H2 react with 1…

Q: 3. 1409 4. NO

A: Answer  Write the formula of acid formed when each of these acidic…

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A: The ions are given and we have to tell the empirical formula of the four ionic compounds by using…

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.