What evidence of a chemical reaction might you see when the chemical reaction below is run in a laboratory experiment? Na2S (aq)  +  CuSO4 (aq)  ⟶⟶Na2SO4 (aq)  + CuS(s) Group of answer choices formation of a gas (bubbles) formation of a solid (precipitate) change in color heat produced (temperature increase) heat consumed (temperature decreased)

Q: Balance the following equations using lowest whole number coefficients. A number 1 must be placed…

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

Q: Write a balanced chemical equation for the standard formation reaction of solid sodium hydrogen…

A: Standard formation reactions are those reactions in which 1 mole of the product species is formed…

Q: When we discussed LeChatelier's Principle, we discussed the concept of supersaturated solutions. A…

A: Le Chatelier's Principle: This principle states that when any system at equilibrium for a long…

Q: The value of ΔHorxn for the following reaction is -289.0 kJ/mol. 2 ZnS(s)  +  O2(g)  →  2 ZnO(s)  +…

A: The change in enthalpy of a forward and backward reaction is same in magnitude but opposite in…

Q: Solid lithium metal and diatomic nitrogen gas react spontaneously to form a solid product. Give the…

A: In a balanced chemical equation atoms on either side of the reaction arrow must be balanced.

Q: Which type has a single compound as a reactant?

A: A→ B + C Where, A is the reactant. B and C are the products.

Q: Given these reactions, X(s)+1/2O2(g)⟶XO(s)                 Δ?=−887.7kJ/mol XCO3(s)⟶XO(s)+CO2(g)…

A: X(s)+1/2O2(g)    ⟶    XO(s)                                          ΔH1=−887.7kJ/mol…

Q: Consider these reactions, where M represents a generic metal.…

A: In order to get the desired equation, the following rearrangements in reactions have to be done.

Q: Write an equation for the following reaction. Balance it. Include the state of matter for each…

A: We have to balance this reaction  Type of reaction =?

Q: Give the product of the given reactants, balance the equation, and identify the type of chemical…

A:

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first…

A: Two reactions are given and yield of both reaction are also given. And obtain mass of Cu is also…

Q: 2. FeS FeCl Precipitation 2HCI, -> (aq) 2 (aq) Neutralization Gas Production

A: Double displacement reaction: The reaction in which elements are exchange between two compounds are…

Q: A + A-B A-B+ (B A-B+ C-D ↑↑↑↑ A A B + B АНС + B A-D + C-B

A: Given reactions can be named as follows:  1. Combination / Synthesis reaction. 2. Chemical…

Q: Balance the following reaction in basic solution. Cr(OH)3(s)+ClO3−(aq)→ CrO42-(aq)+Cl−(aq) Fill in…

A: Redox reaction are those in which both oxidation and reduction reaction occurs simultaneously.

Q: Compose the balanced reaction equation for the following reaction occuring in basic aqueous medium.…

A: Redox reaction involves both the oxidation and reduction process simultaneously. In the given…

Q: For the following questions: Predict the products. Balance the chemical reaction. Add states of…

A: As per our guidelines I can answer only first reaction because you have posted multiple reactions.

Q: 6.) The reaction between Zn and CuSO4 is an ______ reaction   a. exothermic b. endothermic c.…

A: The reaction between Zn and CuSO4 gives ZnSO4 and Cu. In this reaction which is represented as…

Q: Choose the correct classification of chemical energy process for the reaction shown below N2(g) + O2…

A: Endothermic process , the given reaction belongs to endothermic process.

Q: Give the product of the given reactants, balance the equation, and identify the type of chemical…

A:

Q: The compound magnesium acetate, Mg(CH3COO)2 is soluble in water. Write the net ionic equation for…

A: Ionic salts that are soluble in water, dissociates into corresponding ions in water.

Q: Which of the following is evidence of a chemical reaction?    Group of answer choices…

A: Chemical changes when a new substance is formed through a chemical reaction.

Q: 2 CH3OH) +3 O2(g) → 2 CO2) + 4 H20) + 347 kcal Calculate the amount of heat in kcal & kJ released…

A: Given : The reaction equation is as follows. 2CH3OH(l) + 3O2(g) → 2CO2(g) + 4H2O(l) + 347 kcal Mass…

Q: Which one of the equations below is an exothermic reaction? A) CO₂ (g) → C (s) + O₂ (g) ∆H° = 394…

A: The energy is either absorbed or released during the chemical reaction. The negative sign of energy…

Q: For the following reactions, determine the value of æ (in mol). 4 C + Sg → 4 CS2 2.3 mol C yields x…

A:

Q: 2Mg(s)+O2(g)⟶2MgO(s)     Δ?=−1203 kJ/mol NH3(g)+HCl(g)⟶NH4Cl(s)   Δ?=−176 kJ/mol…

A: An exothermic reaction is a reaction in which energy is released from a chemical reaction in the…

Q: Balance the reaction, do not leave any fractions, don't leave anything blank, then answer the…

A: A balanced equation should have same number of atoms on both sides of the equation.

Q: Write a balanced equation for each reaction including the state symbols for all reactants and…

A: The solution is given below -

Q: Balance the following equation and write the sum of the coefficients of the reactants and products…

A: The given chemical equation is, SeO42-aq+Hgl+Cl-aq→SeO32-aq+Hg2Cl2s The unbalanced equation is…

Q: Consider the following chemical reaction: 2HCl (aq) + Mg(OH)2 (s) → 2H2O (l) + MgCl2 (aq) What…

A: In given reaction state of reactants and product given.

Q: Decide whether a chemical reaction happens in either of the following situations. If a reaction does…

A: Situation(a):  Chemical reaction will occur When lead metal strip is put into a beaker of 0.098 M…

Q: What are the chemical products given the following reactants are mixed and the reaction is a double…

A: In balanced reaction number of each atom on reactant side is equal to number of each atom on product…

Q: Give the product of the given reactants, balance the equation, and identify the type of changes the…

A:

Q: Balance the chemical equation _FeCl3 (aq) +_KSCN (aq)------->_Fe(SCN)3 (s)+ _KCL (aq) Identify…

A:

Q: True or False: The combustion of methane, CH4, is an exothermic reaction used to heat our homes. The…

A: The reaction of combustion of CH4 – CH4g + 2O2g →CO2g +2H2Og

Q: Balance the chemical equation _Zn (s) + _ HCl (aq)------> _ZnCl2 (aq) + _ H2 (g) identify the…

A:

Q: 13) Balance the precipitation reaction by filling out the table below and writing the correct…

A: A chemical reaction equation which contains same number of atoms on both reactant and product side…

Q: Considering the following reaction(2), what kind of reaction is it? Reaction 2 CI он B C A :0:

A: Consider the given reaction for the formation of ether is as follows;

Q: the thermite reaction: |(s) + Fe2O3(s) ---> 2 Fe(s) + Al203(s) much heat is generated that the iron…

A: Exothermic reaction= reaction in which heat is generated Endothermic reaction= reaction in which…

Q: Balance the reaction of NaBr + CaO --> CaBr2 + Na2O

A: In a balanced chemical reaction, the number of atoms of each element is same on the reactant and…

Q: 2Mg(s)+O2(g)⟶2MgO(s)     Δ?=−1203 kJ/mol2Mg(s)+O2⁡(g)⟶2MgO(s)⁢     Δ⁢H=−1203 kJ/mol…

A: Exothermic reactions are those in which ΔH is +ve. That means after reaction some amount of heat is…

Q: For the following questions: Predict the products. Balance the chemical reaction. Add states of…

A:

Q: For each of the following balanced chemical reactions, identify the type of chemical reaction. If…

A: 2Na(s) + Cl2(g) ---> 2NaCl(s) The given reaction is simple formation reaction.     4PCl5(g)…

Q: Consider a reaction between: AgClO4 and NaCl. A: NaClO4(s) B: AgCl(s) C: AgClO4 (s), Cl2(g) D: no…

A:

Q: Classify each chemical reaction: Reaction Туре H,CO,(aq) → H,0() + co,(3) choose one Cuso,(ag) +…

A: Decomposition Reaction  It is a molecular reaction where a molecule breaks down into several simpler…

Q: Classify each of these reactions. 2 NaOH(aq)+Pb(Clo,),(aq) 2 NaClo, (aq)+Pb(OH),(s) C,H,(g) + 30,(g)…

A: Answer: In general classification, there are 6 types of reactions: 1. combination reaction 2.…

Q: Which of the following reactions is exothermic? O C2H4(g) + O2(g) → 2C(s) + 2H2O(g) AH = 469.2 kJ O…

A:

Q: Decide whether a chemical reaction happens in either of the following situations. If a reaction does…

A: The possibility of chemical reactions for the given statements has to be predicted.

Q: Consider the following reaction: ___ HCl (aq) + ___ Ca(OH)2 (aq) ---> ___ CaCl2 (aq) + ___ H2O (l) .…

A: For balancing a chemical reaction, number of atoms of a particular element must be same in both side…

Q: In an exothermic reaction: The surroundings absorb heat from the reaction mixture. The surroundings…

A: Exothermic reaction is a type of chemical reaction that releases energy to its surroundings.

Q: Write the word equation below and determine the type of reaction…

A: Find the solution below

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".