when a chemical reaction occurs, the total mass of the substances involved in the reaction does not change. How? Explain with an example?

Q: СаСОз + H3PO4 Ca3(PO4)2 + CO2 +_ H,O - - - REACTANTS PRODUCTS Element Symbol How Many? Element…

A: Answer

Q: Determination of a chemical formula, mass of crucible is 14.9234g, crucible + hydrated sample is…

A: Given  Mass of Crucible = 14.9234  Mass of hydrated sample = 1.6618 gram Mass of crucible + Mass of…

Q: many molecules?

A: As we know, Moles = Number of molecules/6.02×1023 Number of molecules =  Moles × 6.02×1023

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

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

Q: Ammonia can also be synthesized by this reaction: 3H2(g)+N2(g) → 2NH3(g)3H2(g)+N2(g) → 2NH3(g)…

A: The given reaction is ,                                    3H2(g)+N2(g) → 2NH3(g) Clearly, from the…

Q: What is theoretical yield? O The maximum amount of product that can be made from the amount of…

A: We have to tell which option is correct

Q: Sulfur (S8), combines with oxygen (O2) at elevated temperatures to form sulfur dioxide. How many…

A: A question based on molecules that is to be accomplished.

Q: Combustion of hydrocarbons such as methane (CH) produces carbon dioxide, a "greenhouse gas."…

A: Two questions based on combustion of Methane, which are to be accomplished.

Q: (a) Define the terms limiting reactant and excess reactant.(b) Why are the amounts of products…

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Q: Once the reaction has occurred as completely as possible, what amount (in moles) of the excess…

A: The given chemical equation is perfectly balanced. 2 moles of ZnS requires 3 moles of O2, then 1…

Q: What is the difference between the molar mass and empirical formula mass of a compound? When are…

A: For the given molecule, the total sum of the atomic masses of atoms that are present in the…

Q: WHY IS IT THAT IN MOST CASES, THE AMOUNTS OF REACTANTS AND PRODUCTS ARE INDICATED IN GRAMS INSTEAD…

A: In the field of chemistry, the reactions are carried out by using certain reactants to produce the…

Q: Why must a chemical equation be balanced before youcan determine mole ratios?

A: In a balanced chemical equation stoichiometric coefficients of reactants and products are known.…

Q: Which of the following is FALSE? A) Stoichiometry shows the numerical relationship between chemical…

A: A chemical reaction in which the number of atoms present on the left hand side of the equation is…

Q: A) How many grams of Mgl, is present in a 0.4745 g sample that is 53.21% Mgl2 (278.11 g/mol)? B)…

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Q: 1. How is the chemical equation balanced? a. changing the subscript c. adding coefficient b. adding…

A: The questions given are, 1. How is the chemical equation balanced?a. changing the subscript c.…

Q: 1. HOW DO YOU DETERMINE THE LIMITING REACTANT IN A CHEMICAL REACTION? WHAT IS ITS SIGNIFICANCE IN A…

A: Limiting reagent is the reagent in reaction which consume first and another reagent is still present…

Q: What statements are always true about limiting reactants? Select one or more: O The limiting…

A: Limiting reactants:     The   reactants which Consume first are called limiting reactants for…

Q: In a chemical reaction, what is the theoretical yield? The percentyield?

A: Introduction: Yield: In chemistry, the yield of a reaction is defined as the amount of product…

Q: What is a theoretical yield? Actual yield? What are their differences?

A: The amount of a substance produced in a chemical reaction is determined as the yield of the…

Q: A sample of iron was covered with an excess of powdered elemental sulfur. The mixture was heated to…

A: Mass of crucible and lid, M1 = 22.87 g Mass of crucible and lid and iron M2 = 26.68 grams Mass of…

Q: Solid lithium hydroxide is used in space vehicles to remove exhaled carbon dioxide from the living…

A: Mass of LiOH = 1kg

Q: e. The patient consumed 1.25 g of calcium iodide and 2.93 g of sodium oxalate in the past 3 days.…

A: Given, Mass of calcium iodide = 1.25g. Mass of sodium oxalate = 2.93g. Moles of calcium iodide and…

Q: What is the significance of the coefficients in a balanced chemical equation?

A: The numerical relationships between chemical amounts in a balanced chemical equation are called…

Q: In the chemistry lab stockroom, there is more than enough hydrogen gas for the reaction , but only…

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Q: how do i determin the mole ratios in a chemical reaction?

A: A mole ratio is the ratio between the number of moles of any two compounds involved in a chemical…

Q: Mass of Container + Sample 2.70 Mass of Container 1.95 48.00 % of Sand % of Ammonium Chloride 16.00…

A: Given: (1) Mass of container + sample = 2.70 g (2) Mass of container = 1.95 g   (3) % sand = 48.00…

Q: n our bodies, sugar is broken down with oxygen to produce water and carbon dioxide. For the…

A: Solution -      C6H12O6          +         6O2          →         6CO2+6H2O  0.597 moles…

Q: In a chemical reaction, what is the theoretical yield?

A: Yield The quantity of product that is obtained from a chemical reaction is expressed as yield.…

Q: Consider the given reaction for the synthesis of Aspirin (C9H8O4)(hint!: Make sure the equation is…

A: Given reaction is balanced. C7H6O3 + C4H6O3 -----> C9H8O4 + C2H4O2   Calculating moles of…

Q: I'm terrible at word problems but my professor doesn't give explanations to why you missed something…

A: Let’s say there is a chemical reaction given

Q: The gas which is burning is propane, C3H8(g). (i) Using correct scientific terminology, DESCRIBE and…

A: In a chemical reaction; the substance which involves in conversion is said to be reactant whereas…

Q: Can the subscripts in a chemical formula be fractions? Can coefficients in a balanced chemical…

A: In the balanced chemical equation, the atoms of all the elements are equal in the reactant and in…

Q: A weighed sample of iron (Fe) is added to liquid bromine (Br2) and allowed to react completely. The…

A: Since you have asked a question with multiple subparts, we will solve first three sub-parts for you.…

Q: True or False? In a chemical reaction the amount of product that can be formed is determined by the…

A: The answer to the following question is given by -

Q: The following are true about limiting reactant except: A It limits the quantity of product being…

A: Given: to identify the incorrect statement about the limiting reactant.

Q: What is always conserved in a chemical reaction? A) moles B) volume C) atoms D) molecules E)…

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Q: In the five examples, we are NOT concerned with writing "balanced" equations. We are ONLY concerned…

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

Q: Solid lithium hydroxide is used to remove exhaled carbon dioxide from space vehicles by forming…

A:

Q: The theoritical yeild of a certain compound according to a chemical reaction is 127 g. The percent…

A: Theoretical yield = 127 g percent yield = 82.0%   Percent Yield = Actual yieldTheoretical…

Q: The mass of the product formed in an experiment is theoretical yield? True or false?

A: Given : Theoretical yield.  To find : statement is True or false.  Solution : As we know that, when…

Q: What percentage is this of the total mass of the reactants?

A: The chemical reaction,  H2 + 1/2 O2 ------> H2O

Q: Why is it essential to use balanced chemical equations when determining the quantity of a product…

A: It is essential to use balanced chemical equations when determining thequantity of a product formed…

Q: 5 g of hydrated barium chloride is heated in a crucible until the mass of the sample no longer…

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Q: you only have the chemical equation, what information do you have? In order to convert between grams…

A: A chemical equation tells about the stoichiometric ratio between the reactants and products.

Q: How many molecules of ammonia

A: N2 +3 H2----------->2NH3 1 MOLECULE OF NITROGEN AND 3 MOLECULES OF HYDROGEN PRODUCE  2 NH3…

Q: Converting between quantities To convert from a given quantity of one reactant or product to the…

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