For numbers 20-25: Nitric acid is prepared from the reaction of 69.0 grams of nitrogen dioxide with 36 grams of water. unbalanced chemical equation: NO2 + H20 → HNO3 + NO What is the coefficient of NO2 if the equation is balanced? O 2 O 3 O 4 O 5

Q: Magnesium burns in air with a Dazzling brilliance to produce magnesium oxide…

A: Convert mass into mole by mass/molar mass  Then apply mole-mole relationship to get the answer

Q: A student reacts 6.0 g solid sulfur and 5.0 g oxygen gas at 95% efficiency to produce sulfur…

A: Given mass of S8 = 6 g mass of O2 = 5 g percentage yield = 95℅ molar mass of S8 = 256 g/mol molar…

Q: CH4+2O2→CO2+2H2O If you start with 3 moles of methane and 2 moles of oxygen, how many moles of…

A: Calculate limiting reagent by this formula Mole÷stoicheometry coefficient  Which one have less value…

Q: One mole of particles of any substance contains is:   a. 3 x 10-10particles     b. 106particles…

A: Note : 1 mole of substance contains 6.023 x 1023 molecules.

Q: 1srito bes oj svilsler svom Jon ob bns 1ertisgot 92ob ens eslou Dinitrogen tetroxide spontaneously…

A: Given : Dinitrogen tetroxide N2O4 i.e spontaneously decomposes into nitrogen dioxide i.e NO2.

Q: and Liquid hexane (CH₂(CH₂) CH3) reacts with gaseous oxygen gas (O₂) to produce gaseous carbon…

A:

Q: Methane gas , CH 4 , burns in air to produce carbon dioxide and water . What mass of water is…

A: Mass of methane = 500 g  We need to find the mass of water produced by combustion of methane.

Q: When the equation H2 + Fe3O4 -------> Fe + H2O is completely balanced with the smallest whole…

A:

Q: Balance the following equations. (Use the smallest whole numbers possible. Enter 1 where appropriate…

A: Balanced chemical equation are:

Q: you only have unlimited amounts of hydrogen gas but only have 150.0g of oxygen gas

A: Given that mass of oxygen is 150g.and a balanced reaction is given.

Q: Gaseous ethane (CH,CH, reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,)…

A: In a chemical reaction, two or more reactants react with each other to form a new substances. This…

Q: H20(f) – Ca (aq) + OH (aq) + |H2(g) Ca(s)

A:

Q: Automobile airbags inflate due to the formation of nitrogen gas from the chemical reaction 2 NaN,(s)…

A: Given :-  2NaN3(s) → 3N2(g) + 2Na(s)  To determine :-  number of Na and N atoms in both reactant and…

Q: Balance these chemical equations. (Use the lowest possible whole number coefficients.) (a)  HgO →…

A: Applying hit-trial method of balancing chemical reaction by balancing atoms both side of arrow.

Q: Gaseous ethane (CH,CH,) reacts with gaseous oxygen gas (O₂) to produce gaseous carbon dioxide (CO)…

A:

Q: For the reaction 2 H2O → 2 H2 + O2, how many moles of O2 are produced with 1.45 moles of H2? Your…

A: Given  Reaction  2H2O   →  2H2   + O2 Number of mole of H2   = 1.45 mole  Number of mole of O2   = ?…

Q: What coefficients balance the following chemical equation?  ___C2H2 + ___O2 --->  ___CO2 + ___H2O

A: The given reaction is, C2H2 + O2 ---> CO2 + H2O

Q: Mn2+ + BiO3 → MnO4 + Bist Insert the coefficients for the balanced reaction. Use 1 if there is only…

A: Mn+2+BiO3-→         MnO4-+Bi+3Balancing it using half reaction menthod:-Now,

Q: Fill in the blanks with the correct lowest whole-number coefficient to balance the chemical…

A: The reaction taking place is given as, => ZnS + O2 -------> ZnO + SO2

Q: Fill in the coefficients (include a 1 where appropriate or just a single space) to balance this…

A: For balancing chemical equation we need to make sure the number of atoms of each element on the…

Q: How many grams of nitrous acid can be made from 35.19 grams of water? dinitrogen tetrocide (g) +…

A: Given that: Reaction of dinitrogen tetra oxide with water: N2O4(g) + H2O(l) → HNO3(aq) + HNO2(aq)…

Q: [References] Ethanol, the alcohol used in automobile fuels, is produced by the fermentation of…

A: Mass of sugar = 4.45 kg×1000g1kg = 4450 g. At STP:         Temperature = 273.15 K          Pressure…

Q: When methane is combusted, how many moles of oxygen gas are needed to react to form 7.90 moles of…

A: Given :-  CH4 + 2O2 →CO2 + 2H2O  number of moles of H2O produced = 7.90 mol  To calculate :-  number…

Q: Fill in the coefficients (include a 1 where appropriate or just put a single space) to balance this…

A: A balanced chemical equation is the type of equation in which equal number of elements are present…

Q: Consider the following balanced equation: 2 H2 + 02 -2 H20 What mass of water (H20) will be…

A: From the given data,it is clear that 2 mol H2 +1 mol O2 → 2mol H2O we know that ,1 mol of  a…

Q: Balance these chemical equations. (Use the lowest possible whole number coefficients.) (a)    Sr +…

A: For a reaction to be balanced the all the elements present in the reactant must be equal to the all…

Q: 2Al(s) + 3CuSO4(aq)--> Al2 (SO4)3 (aq) + 3Cu(s) How many grams of aluminum will be required to…

A:

Q: MgNH4PO4•6H2O loses H2O in a stepwise fashion as it is heated. Above 100 degrees celsius, the…

A: Hydrated magnesium ammonium phosphate (MgNH4PO4.6H2O) is heated over 100˚C  and converted into the…

Q: Figure 2 H₂O2 (1) - ---> H₂O₂ (g) H₂O₂(aq) -- ---> H₂O (1) + O2 (g) Which of the following…

A:

Q: A hypothetical student achieved a 125% yield of barium phosphate. Explain, briefly, why this result…

A: Percent yield is the percentage of ratio between actual and theoretical yield of a reaction. Actual…

Q: Fe,O3 + 3 C -A 2 Fe + 3 CO (15) How many kilograms of iron would be formed from 125 kg of Fe203?…

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

Q: 5 Balance the following chemical equation by placing coefficients in front of the formulas. • The…

A: A chemical equation is balanced when the number of the atoms involved in the reactants side is equal…

Q: The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water. 2 C4H10 +…

A: A balanced chemical equation is used to determine the moles of reactants and products using…

Q: For numbers 20-25: Nitric acid is prepared from the reaction of 69.0 grams of nitrogen dioxide with…

A:

Q: B. drawing molecular pictures of the following chemical reaction using the symbols below 2NO(g) +…

A: Given :-2 NO (g) + 2 H2 (g) → N2(g) + 2H2O(g)we have to draw molecular picture of the givenchemical…

Q: Insert the missing coefficients to completely balance each chemical equation. equation 1: S+6HNO3…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: Balance the following chemical equation by placing coefficients • The number "1" must be used in an…

A:

Q: As an EPA scientist studying catalytic converters and urban smog, you want to find Kc for the…

A: 1/2 N2 + 1/2 O2  <---------> NO     Kc1 = 4.8x10-10 Now reverse this reaction, Kc1 should be…

Q: If a student burns 0.57 grams of methane (CH4) according to the equation below, what mass of carbon…

A:

Q: 2 Mg(s) + O2(g) -> 2 MgO(s) When 1.5 g of magnesium burns, the theoretical yield of magnesium oxide…

A:

Q: Which coefficients correctly balance the following chemical equation? ___ N2 + ___ H2O → ___NH4NO2…

A: The entire number of atoms available on the reactants' side should match the net number of atoms…

Q: Consider the following unbalanced equation: NH3 + 02 ------> NO2 + H2O The combustion of 28.8 grams…

A: Combustion reaction is a reaction where oxygen reacts with a molecule. Combustion can be both…

Q: Make Ammonia: N₂ + H₂NH3 Separate Water: H₂O H₂+0₂ Combust Methane: CH₂ + O₂ CO₂ + H₂O Determine for…

A: Atoms are said to be balanced when they are present in equal number on product and reactant side.…

Q: Consider the following balanced chemical equation: 3Ag2S + 2Al → 6Ag + Al2S3 If 86.0 grams of…

A:

Q: add numbers to balance this chemical equation _____ C10H22 + ______O2 -->______ CO2 + _______ H2O

A:

Q: In the equation SiO2 + 2C -> Si + 2CO, if 24.0 grams of silicon dioxide is used, how many grams of…

A: Answer

Q: Fill in the coefficients (include a 1 where appropriate or a single space) to balance this chemical…

A: 2Cu2O   --> 4Cu+   +  1 O2

Q: Complete each of the following problems, showing all work. 1. 'Write the balance chemical reaction…

A: Combustion reaction is defined as the reaction in which the hydrocarbon is burnt in the air to form…

Q: A student begins an experiment with 0.4631 g sample of aluminum can. At the start of week 2 the…

A: Given: Mass of aluminium = 0.4631 g. And the mass of potassium alum KAl(SO4)2•12H2O produced…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".