Potassium (K) reacts with oxygen gas (O,) to form potassium oxide (K,O). Which equation for this reaction is correctly balanced? K+ O2 K,O 2K + O2 K20 4K + O2 2K,0 4K+202 2K,0 B 26 27 28 29 30 31 33 34 35 Save/Exit

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: Predict the products and balance the following reaction: Ag,SO,(aq) + NaCI(aq) - A) Ag,SO,(aq) +…

A: C)   Ag2SO4 (aq) + 2 NaCl (aq) → 2 AgCl (s) + Na2SO4 (aq)

Q: Assuming an efficiency of 30.40%, calculate the actual yield of magnesium nitrate formed from 122.5…

A:

Q: Fe Fe Fe Draw more chlorine How many of cach etom are in the reactants? How many of cach etom are in…

A: 2Fe and Cl2 reacts to give FeCl3

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: Reaction FeCl₂ (aq) + Na₂S (aq) 2HgO (s) - Cl₂(g) + 2KI (aq) 2NaCl(aq) + FeS (s) 2Hg (1) + O₂(g)…

A:

Q: Hydrogen peroxide decomposes as shown below: 2 H2O2 → 2 H2O + O2 molar mass H2O2 = (34.0 g/mol)…

A:

Q: 7. If 3.25 g of Mg(OH)2 can dissolve in 155 mL of water as it makes a saturated solutions, determine…

A: The mass of dissolved magnesium hydroxide is = 3.25 g The volume of the solution is = 155 mL The…

Q: Write a balanced equation for the following reaction. Zn (s) | Zn²+ (aq) II Ag* (aq) | Ag (s) A. O…

A: Given  Zn(s) | Zn2+( aq) || Ag+( aq )| Ag( s)  Balanced Equation  = ?

Q: What type of chemical reaction is described by the following equation? CH4 + 202 → CO₂ + 2H₂0 A…

A: Given reaction is :  CH4  + 2O2  ---> CO2  + 2H2O  Here methane reacts with oxygen to form carbon…

Q: What are the products for the reaction of iron (III) nitrate and sodium hydroxide? Group of answer…

A: Given reaction reaction is simple inorganic double displacement reaction.

Q: Which substance gets reduced in: Pb(s) + PbO2(s) + 2H2SO4(aq) = 2PbSO4(s) + 2H2O(+)?

A: Given :-   Pb(s) + PbO2(s) + 2H2SO4(aq) → 2PbSO4(s) + 2H2O(l)  To identify :-  reduced species

Q: Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs,…

A: To write the product for the below equation  Ba(ClO4)2(aq)+RbOH(aq)→

Q: References] References to access important values if needed for this question. When CO(g) reacts…

A: In the question, it is given that CO(g) reacts with O2(g) and produced CO2(g) along with 67.6kcal…

Q: Part of a routine blood test is to check the level of sodium in your blood. It is optimum to have…

A: Molarity of a solution is defined as the moles of solute present in 1 liter of solution. Molarity =…

Q: If 121.6g of NaNO3 is completely dissolved into a solution consisting of volume of 1.25L what is the…

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

Q: PART D: EFFECT OF TEMPERATURE As mentioned in Part B, aqueous Co²* ions appear red at room…

A: At equilibrium, the rate of forward and that of   backward reactions for a reversible reaction will…

Q: A 0.4723-g sample of primary-standard-grade Na2CO3 required 34.78 mL of an H2SO4 solution to reach…

A:

Q: For each of the reactions below, classify as a combination, decomposition, single replacement, or…

A: The given reaction is,

Q: One way to determine the hardness of a water sample is to precipitate the calcium out of solution as…

A: Given , Volume of sample of water = 1.00 L Calcium carbonate recovered = 0.534 g

Q: Calculate the equilibrium constant for this reaction: 2Ag(s) +2 2Ag* 2Hg + +

A: Calculate the equilibrium constant for this reaction: 2Ag(s)     +      Hg2+2   →redox reaction…

Q: What are the reactants for the below reaction is/are? Sodium hydroxide + Hydrochloric acid  ⟶ S o d…

A: The reaction given is  Sodium hydroxide + hydrochloric acid -------> Sodium chloride + water

Q: Mg + 2HCl → MgCl₂ + H₂ 2Na+ FeCl₂ → 2NaCl + Fe AgNO3 + Cu → CuNO3 + Ag What is being oxidized? What…

A: A reaction in which oxidation & reduction occurs simultaneously are called Redox reaction.…

Q: None

A: Given data:The provided reaction is as follows:Cu2​(OH)2​CO3​(s)→2CuO(s)+CO2​(g)+H2​O(g) Given mass…

Q: How many grams of CO are required to consume completely 365g of Fez 03 based on the following…

A:

Q: Cl2, Al(s)

A: Chlorination of benzene: Benzene reacts with chlorine in presence of a Lewis acid catalyst to form…

Q: Consider the redox reaction Fe(s) + Cu²+(aq) → Fe²(aq) + Cu(s) Which substance gets oxidized? Fe2+…

A: Increase in oxidation state : Oxidation  Decrease in oxidation state : Reduction  Any species itself…

Q: 6I- + 2Cr(OH)33I2 + 2Cr+ 6OH- In the above redox reaction, use oxidation numbers to identify the…

A: Increase in oxidation no. Is oxidation & decrease in oxidation no. Is reduction. Compound is…

Q: What type of reaction is this? Br Br OH Oö-H +

A: Hydroxide ion is a good nucleophile, it also a good base. A nucleophile is a species which likes…

Q: 6 Fe2+ (aq) + ClO3 - (aq) + 6 H+ (aq) → 6 Fe3+ (aq) + Cl- (aq) 3 H2O (l) If the concentration of…

A: In general for a reaction nA -----> mB Rate expression may be expressed as  -∆[A]/(n∆t) =…