Which of the following is a balanced chemical equation:   3Cu + 8HNO3 -> 2Cu(NO3)2+2NO+4H2O   P4H10 + 5H2O -> 4H3PO4   2HCl + 2CaCO3 -> CaCl2+H2O+CO2   Be2C+4H2O->Be(OH)2+CH4

Q: Ammonia reacts with oxygen as follows: 4NH3(g) + 702(g) 4NO2(g) + 6H20(g) AH° = -1132 kJ %3D

A: Balanced chemical equation: 4NH3(g)  +  7O2(g)  ----->  4NO2(g)  +  6H2O(g)    ∆H = -1132 kJ…

Q: Write a balanced chemical equation for the reaction that occurs when (a) Mg(s) reacts with Cl21g2;…

A: Balanced Chemical Reactions for the given conditions are discussed below -

Q: name each of the following molecular compounds a. N2O5 b. SeO2 c. RnF2 d.Si3N4

A: Since you have posted multiple questions, we are entitled to answer the first only. And since the…

Q: It is well known that air consists of 21 mol O, and 79 mol N, Calculate the average molecular weight…

A: Given : Air contains 21 moles of O2 and 79 moles of N2. Molar mass of O2 = 32 g/mol. And molar mass…

Q: Q3) complete and balance each of the following chemical equations. a) P4 + O2 b) Al (OH) 3 c) 2KI +…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: a. Complete the following chemical equation by counting the number of atoms of each element in each…

A: First we will complete the reaction and then balance it.

Q: Is the number of total molecules on the left side of a balanced equation always equal to the number…

A: For balancing an equation , one have to equate number of elements in both sides of the equation .

Q: 1. Are the following equations balanced or unbalanced? 2Fe + 02 Fe203 2Na + 2HCI → H2 + 2NACI 2Na +…

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Q: What are the balanced chemical equations for the following? 1. Pb(NO3)2 & KI 2. Pb(NO3)2 & Na3PO4 3.…

A: When the number of the different atoms of elements in the reactants side are equal to that of the…

Q: Which of the following equations is not balanced properly? O 2 Cr + 6 HCI → 2 CrCl3 + 3 H2 O 2…

A: Given reactions: 2Cr + 6HCl→2CrCl3 + 3H2---12NaHCO3 →Na2CO3 + CO2 + H2O---24NH3 + 14O2→4NO2 +…

Q: 3. Law of Conservation of Mass. (a) In a combustion reaction, 46.0 g of ethanol reacts with 96.00 g…

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Q: Write answers to these using mental math (without a calculator). Based on the balanced equation:​​​4…

A: A chemical equation represents the reactants and products participating in a chemical reaction.

Q: An organic compound has an empirical formula of C2H30 and had an approximate molecular weight 86.…

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Q: What is the molar mass of the following compounds?     N2H4                                     b.…

A: The molar mass of a substance can be defined as the mass of that substance present in one mole. It…

Q: Which substance will conduct electricity? o Pure water (H2O) o Epsom salt dissolved in water (MgSO4)…

A: Electrolytes: It is a substance that ionizes or dissociates completely into ions when dissolve in…

Q: A substance is submitted for combustion analysis. The results show that the compound has the…

A: In this question, only 90% of the composition is given. That is 24+32+28+6 = 90  So the question may…

Q: Is the following chemical equation balanced? Does it follow the Law of Conservation of Mass? 2Fe…

A: In a balanced chemical reaction all the atoms of each element is same in reactants side with that of…

Q: Balance the following equation by filling the gaps with appropriate numbers. K + KNO3 K20 N2 +

A: The reaction of potassium and potassium nitrate forms potassium oxide and nitrogen.

Q: (3b-101) Balance the following equations (be sure to first convert any chemical names into…

A: In a balanced reaction, the number of atoms of each kind of element is same on both sides.  Now, in…

Q: 2 FeCl3 + 3 Ca → 2 Fe + 2 CaCl2 1. How many chlorine (CI) atoms are on the product side of the…

A: Answer - Redox reaction - An oxidation-reduction (redox) reaction is a type of chemical reaction…

Q: Calculate the molecular formulas of the compounds having the following empirical formulas and molar…

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Q: If there are 6.2x1022 molecules of calcium carbide, CaC2, what mass of acetylene (C2H2) can be…

A: The solution of above question is-

Q: Which of the following is a balanced chemical equation:   2HCl + 2CaCO3 -> CaCl2+H2O+CO2   P4H10 +…

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Q: Iculate the percent composition by mass of the following compounds that are important starting…

A: We have to determine the mass percent of each element in the given compound.

Q: B. Write the chemical reactions of the following : a. Test for Carbon and Hydrogen: C+ 2Cu02Cu + CO2…

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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: identify the class of reaction (composition, singles replacement, double replacement) KOH (aq) +…

A: The reactions in which cation and anion of reactants exchange that means cation of one substance…

Q: (3b-101) Balance the following equations (be sure to first convert any chemical names into…

A: Given:

Q: CaBr2 + Na2SO4=CaSO4 + 2NaBr A. How many moles of sodium bromide can be made from five moles of…

A: Applying concept of limiting reagent and mole concept.

Q: Balance out the following chemical reaction: K3PO4 + Mg3(PO4)2 + KCI MgC12 --> O 2:3: 1:6 O 1:1:1:1…

A: Since you have posted multiple independent questions in the same request, we will solve the first…

Q: Complete the balanced Equation Mg+Zn(NO3)2--

A: A balanced equation is that which contains the same number of molecules on either side of the…

Q: Calculate the molar mass of each of the following:(a) the anesthetic halothane, C2HBrClF3(b) the…

A: molar mass of a substance is the mass of the substance in1 mole .

Q: Which of the following is a balanced chemical equation: A 3Cu + 8HNO3 -> 2Cu(NO3)2+2NO+4H2O В…

A: The reactions given are,

Q: Which product balances the chemical equation below? 3AGNO3(aq) + FeCl3(aq) → 3AgCl(s) + A. FeCl (aq)…

A: A chemical equation is called balanced equation if number of elements of the substances present in…

Q: Given the following equation: 2 PbS + 3O2 -----> 2 PbO + 2 SO2 What is the theoretical yield of…

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Q: 109. Elixirs such as Alka-Seltzer use the reaction of sodium bicar- bonate with citric acid in…

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Q: Aluminum chloride and hydrogen gas are produced when strips of aluminum are placed in hydrochloric…

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Q: complete the balanced molecular chemical equation Cu2SO4(aq)+Na3PO4(aq)----

A: The complete and balanced molecular equation has to be given.

Q: What is the balanced chemical equations for the following three? 1. (NH4)2SO4 & BaCl2 2. (NH4)2SO4 &…

A: 1. Balanced chemical reaction between (NH4)2SO4 and BaCl2  is given by, (NH4)2SO4+BaCl2→BaSO4+2NH4Cl

Q: Which represents a balanced chemical equa O A. CO2 + 2H2O → → 2CH4 + 202 O B. CH4 + O2 → CO2 + H20 O…

A: Chemical equation is the representation of a chemical reaction, in which the reactants and products…

Q: Hydrogen and iodine at 500°C react according to the equation H2(g) + I2(g) = 2HI(g) Vessel X…

A: Option C is correct .

Q: chemical reactions

A: Dear student I have given answer to your question in the image format.

Q: NaNO3 → NaNO2+ O2 C3H8 + 02- C02 + H2O Fe + H20 → H2 + Fe304

A: The balanced chemical equations are given below.... 7. Given reaction,  NaNO3 ----> NaNO2 + O2…

Q: Which is the correct balanced formula for calcium polysulphide and hydrochloride acid? Is it a.)…

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Q: When the equation, ____O2 + ____C2H6 --> ____CO2 + ____H2O is balanced, the coefficient of O2 is:…

A: Reaction is balanced when number of atoms in reactant and product side are equal.

Q: Sulfuric acid is a component of acid rain formed when gaseous sulfur dioxide pollutant reacts with…

A: Acid rain is caused by chemical reactions. It begins when compunds like sulfur dioxide and nitrogen…

Q: Consider the balanced equation of aluminum reacting with sulfuric acid. 2 Al + 3 H2SO4 Al (SO4)3 +3…

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Q: Sulfur trioxide gas combines with water to form a single product. SO3 + H2O → ? Based on the law…

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Q: 8. Fill in the blank with a single chemical formula for a covalent compound that will balance the…

A: A neutralization reaction is the one in which an acid reacts with a base to form salt and water.