Below are described three methods through which breads are leavened (risen). Which of them are chemical changes?

Q: One way in which the useful metal copper is produced is by dissolving the mineral azurite,…

A: Given,  metal copper is produced is by dissolving the mineral azurite, which contains copper(II)…

Q: predict the reaction type (single or double displacement)  -- predict the names and states of the…

A: Given reaction HCl(aq) + NaOH(aq) ->

Q: Breathalyzers measure the alcohol (ethanol, C2H6O) content in an exhaled breath using a redox…

A: Given: C2​H6​O+Cr2​O72−​→C2​H4​O2​+Cr3+Step 1: Write the…

Q: Give all questions answers with explanation

A: Potassium chromate (K2CrO4) is yellow in color and potassium dichromate (K2Cr2O7) is orange in…

Q: The mixing of which pair of reactants will result in a the formation of a precipitate? O CSCI(aq) +…

A: The precipitate is an insoluble product. When solutions containing ionic substances are mixed, the…

Q: based on your results complete and balance the following reactions. Make sure you correctly identify…

A: The balanced and complete chemical equations of the above reactions are given below;

Q: Which substance has the greatest tendency to participate in a chemical reaction with small chain…

A:

Q: Sodium hydrogen carbonate (NaHCO,, also known as sodium bicarbonate or "baking soda", can be used to…

A: Given: Volume of HCl solution = 250 mL or 0.250 L (SInce 1 L = 1000 mL) Molarity of HCl solution =…

Q: Write the balanced chemical equation for this reaction below. (without any Ag2O). Each reactant and…

A: • The given reaction is,         AgNO3 + Na2CO3 →    • We need to determine the product of the given…

Q: OH doc Ph A TBS. Ph H3O+ TBS. Ph 1. B 2. H₂O+ HO TBS. Ph TBAF с

A: Given data :

Q: 3.50 g of Mg is added to 35.0 mL of 0.500M HCI. A single displacement reaction occurs in a sealed…

A: Given,mass of magnesium = 3.50 gMolarity of HCl = 0.500 Mvolume of HCl = 35.0 mLvolume of gas = 50.0…

Q: 7.An example of a neutralization reaction would be: A) NaOH + HCl----------->NaCl + H2O B) Cu +…

A: Applying definition of neutralization reaction, which involves acid base reaction and produce salt…

Q: How does the increase in temperature of a system affect the rate of chemical reaction? How does a…

A: Chemical reaction A Chemical Reaction is a process that occurs when two or more molecules interact…

Q: Provide a correctly balanced equation for the hydration of calcium chloride (a strong electrolyte).…

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Q: 2+ from solution, one could add: To precipitate Ba O H2S(aq) in 0.3 M HCI(aq) O H2S(aq) in…

A:

Q: The solubility product of solid copper(II) hydroxide is 2.2 x 10−20 g/L in water at 298 K. What is…

A: Given :- Ksp of Cu(OH)2 =  2.2 x 10−20 g/L  To calculate :- Its solubility (g/L)

Q: Increasing the concentration of a product in a system Decreasing the concentration of a product in a…

A: Equilibrium is a state where rate of forward and backward reaction is the same and no net change in…

Q: A 500 mL sample of waste water contains 42.65 ug of mercury, Hg. If the density of the sample is…

A: By calculating the mass of solution we can find concentration of solution in ppb.

Q: The amphoteric reaction between two water molecules is energy + H20 + H20 <-» H3O* + OH". Is this…

A: Two water molecules dissociate into H3O+ and OH- is the reaction of self ionization of water or auto…

Q: Sodium hydrogen carbonate (NaHCO,), also known as sodium bicarbonate or "baking soda", can be used…

A: Given the volume of 0.036 M HCl solution inside stomach = 50. mL  First we have to calculate moles…

Q: Write the equation for the dissolving of cobalt(II) carbonate in water. Be sure to specify the state…

A: we have to write the equation for dissolving cobalt(II)carbonate in water

Q: • Remember in an acid-base reaction, there is only the movement of a hydrogen atom from the acid to…

A: Reaction between acid base produces salt and water.

Q: Sodium hydrogen carbonate (NaHCO,, also known as sodium bicarbonate or "baking soda", can be used to…

A: Given, HCl(aq) + NaHCO3(aq) ➝ NaCl(aq) + H2O(l) + CO2(g) Molarity of HCl solution = 0.040 M = 0.040…

Q: Which statement is true about a reversible reaction?  The forward and reverse reactions stop.  The…

A: Reaction involves a lot of interaction if that interactions will be effective then reaction proceed…

Q: What other reactants are required for the following reaction to occur?

A: Alkene will undergo addition reaction with Cl2 to give vicinal dihalide. NaOEt will abstract the H+…

Q: Write the reaction when solid lead (II) cyanide is put into water:  write the reaction when solid…

A: The reaction when solid lead (II) cyanide is put into water is given below : Pb(CN2) (s)    →H2O(l)…

Q: Br

A:

Q: Consider the following fictional reaction: 2AB(aq) = 2A(aq) + B2(aq) AH = -25 kcal/mol What happens…

A: This is an equilibrium reaction and change in enthalpy of the reaction is negative so exothermic…

Q: 3. When sodium chloride dissolves in water, the ions dissociate or break apart in solution. NaCl (s)…

A:

Q: How many grams of sodium phosphate, Na3PO4 can be made from 9.60 g of sodium hydroxide and…

A: The given question can be based on the prior knowledge of the mole concept and the stoichiometric…

Q: Q3. Compare the molar solubility of Ca(OH)2 at the two different temperatures. Is Ca(OH)2 is more…

A: Molar solubility:Molar solubility is the number of moles of a substance that dissolve to produce one…

Q: Complete and balance each of the following neutralization reactions. H2SO3(aq)+NaOH(aq)--> Express…

A:

Q: Which of the following best describe the term precipitate? 1.A solid reactant that does not…

A: We have to choose appropriate option that will be best defining the term precipitate.

Q: NaOH Standardization

A: A provide a detailed and step by step calculation for the data obtained in the above given table.

Q: Sodium hydrogen carbonate (NaHCO,), also known as sodium bicarbonate or "baking soda", can be used…

A: NaHCO3 (aq) + HCl (aq) → NaCl (aq) + H2O (l) + CO2 (g) from balanced chemical reaction 1 mole of HCl…

Q: AgNO(aq) + MgBr2(aq)---->AgBr(s) +_Mg(NO3)2 =            identify the reactants,products and (aq)…

A: Chemical reaction can be defined as the reaction in which reactants combine together to form…

Q: heat

A:

Q: Keep carbonated drinks in cold places, O increases solubility of carbon dioxide gas in water O…

A: Answer: In carbonated drinks, CO2 which is a gas is being dissolved in water which is a liquid.

Q: 1.3 mol of HI is added to 1.0 L of a 1.3 MNH, solution. 0.22 mol of HNO, is added to 1.0 1. of a…

A: Given  For question 1  Moles of HI = 1.3 mol Concentration of NH3 solution = 1.3 M Volume of NH3…

Q: What type of reaction is the following reaction?

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Q: HCH₂CO₂(aq) + NH3(aq) →→ CH3CO₂(aq) + NH(aq) HBr(aq) + NH3(aq) →→→ Br (aq) + Ni(s) + 4 CO(g) →…

A: Lewis acid : the substance that accepts pair of non bonding electrons. Lewis base : the substance…

Q: In the balanced equation for the preparation of aspirin, the molar ratio of salicylicacid to aspirin…

A:

Q: Given CH4 +4F2CF4 + 4HF AH 401.0 kcal/mol is The AH (in kJ/mol) for the reaction %2CF4 + 2HF→ ½CH4 +…

A: Enthalpy determination:

Q: A 12.7g sample of vinegar is titrated.  It requires 19.75 mL of 0.205 M NaOH to neutralize the…

A: Molarity of a solution is equal to the number of moles of a solute present in one liter of a…

Q: 1) NaBr +_ HsPO4 → NasPO4 +_ HBr Type of reaction: Ca(OH)2 +_ Al:(SO.)a → _ CaSO, + _ A((OH)s Type…

A: Given reactions,

Q: く + Na OH vorH + NaCl

A: