Q: Complete and balance the following:(a) As(s) 1 excess O2(g)→(b) Bi(s) 1 excess F2(g) →(c) Ca3As2(s)…
A: A balanced chemical is equation has equal numbers of atoms for each element involved in the reaction…
Q: Would the reaction of magnesium, mg with oxygen be more or less vigorous than Al?
A: Yes the reaction of Magnesium with oxygen will be more vigorously than Reaction of Alminium with…
Q: lunderbor | Germany together which of the fellowing is the Compond with sthongest digdl the U.S.…
A: Dipole moment is the multiplication of charge and distance between atoms
Q: Although PF5 and AsF5 are stable, nitrogen does not form NF5 molecules. Explain this difference…
A: Nitrogen (N), phosphorous (P) and arsenic (As) belong to the Group V A. These elements have the…
Q: Indicate whether each of the following statements is trueor false (a) H2(g) and D2(g) are allotropic…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: Why alkalis like sodium hydroxide and potassium hydroxide should not be leftexposed to air?
A: Alkalis like sodium hydroxide and potassium hydroxide should not be exposed to air because both of…
Q: Two lasers generate radiation of (1) 9.5 µm and (2) 0.1 µm respectively. (a) For each of the…
A: a. Energy of a radiation is relation to energy as: E=hcλ where, h = Planck's constant = 6.626×10-34…
Q: v21 Online te X Co. How to Calculate N NSU Login | North X bAer X S PeriodicTableofthe M Action…
A: Using ideal gas equation for N2O PV = nRT P= 10.9 atm V= 4.00 L T= 298 K R= 0.08206 atm.L/ mol.K n=…
Q: 3. Complete and balance the following equations:
A:
Q: Zeolite A, Na₁₂[(AlO₂)12(SiO₂)₁₂] .27HO, is used to softenwater by replacing Ca2²⁺ and Mg²⁺ with…
A:
Q: Calculate the net energy change in kilojoules per mole for the formation of KF(s) from the…
A: The potassium and fluoride ions are combined to form KF(s). The energy released to form solid when…
Q: hich of the following statements is false regarding hydrogen peroxide? Reaction of H2O2 with Fe2+…
A: Reaction of H2O2 with Fe2+ ions will generate OH radicals. See the written solution
Q: In 1995, Mario Molina, Paul Crutzen, and F. SherwoodRowland shared the Nobel Prize in chemistry for…
A: Redox reaction- the reaction in which oxidation and reduction takes place simultaneously called as…
Q: Which of the following compounds will dissociate into the most ions? A. NaCl B. H2SO4 C.…
A: NaCl ------> Na+ + Cl- H2SO4 -------> 2 H+ + SO42- Fe3(SO4)2 -------> 3 Fe3+ + 2 SO42-…
Q: Complete and balance the following:(a) As(s) +excess O₂(g)→ (b) Bi(s) excess +F₂(g) →(c)…
A: The balanced equation is an equation representing a chemical reaction, which has the balanced mass…
Q: The value of delta S for the formation of POCI3 from its consitituent elements, P2(g) + O2 (g) +…
A: The given reaction is,
Q: What mass, in g, of Na3PO4 would be needed to lower the melting point of 3.4 kg of ice to -4.83 ˚C?…
A:
Q: Complete and balance the following:(a) Excess Sb(s) +Br₂(l)→ (b) HNO₃(aq)+ MgCO₃(s)→ (c)…
A: Reactions in which the no of atoms of reactants and the products are equally balanced on the…
Q: What is the point of silicon dioxide? 8. Why are careful stoichiometric calculations important for…
A: 7) The importance of airbag safety is that during an accident if airbags work properly, they can…
Q: * OWLV2 | Online teachin X C According To The Following +…
A: Since from the pic we can see that the number of molecules of oxygen is 6 and nitrogen is 2 From…
Q: Chemistry Question
A: Principle: According to Dalton's law of partial pressures, the total pressure of the gases is equal…
Q: Imagine the made up elements A,B,C, and D form the ions A3+, B3+, C3+, and D3+. The following…
A: Given reactions: A3++B→B3++ AA3++C→no reactionB3++D→ B + D3B3++C→no reaction
Q: Copper(II) hydrogen arsenite (CuHAsO₃) is a green pig-ment once used in wallpaper. In damp…
A: Given:- In damp condition, copper (II) hydrogen arsenite CuHAsO3 converted to a highly…
Q: The space shuttle orbiter utilizes the oxidation of methyl- hydrazine by dinitrogen tetroxide for…
A: Calculate enthalpy of the given reaction by using appendix in the question-
Q: Bromine monofluoride (BrF) disproportionates to bromine gas and bromine tri- and pentafluorides. Use…
A: Given,
Q: The chemical reactivity and behaviour of boron differs substantially from the rest of the p-block…
A:
Q: If 65 grams of Zn are reacted with excess HCl, approximately what volume of H2 gas will be produced…
A: The Volume of Hydrogen gas = 24.63
Q: 1. Calculate the heat evolved when 13.56g of oxygen gas (O2) is used to burn white phosphorus at…
A: 1) Given, P4(s) + 5O2(g) → P4O10(s), ΔH = -3013 kJ/mol ∆H is in negative (-) which indicate the…
Q: (9. Assuming complete ionization of the magnesium citrate, the i value is
A:
Q: Potassium superoxide, KO2, is often used in oxygen masks(such as those used by firefighters) because…
A: Chemical equation is the representation of a chemical reaction, in which the reactants and products…
Q: (a) Why is ZnO called a amphoteric oxide? Name another amphoteric oxide(b) What are alkali’s? Give…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: 7. Calculate the atomic concentration (in cm-³) and density (in g/cm³) of the following, using their…
A: The type of the unit cell, number of atoms present in unit cell and coordination number are related…
Q: 10. The oxides of Group 15 react with water to give acids. Which of the following chemical equation…
A:
Q: Excessive nutrients dumped into waterways can create “algae blooms” that rapidly consume all of the…
A: Dead zones are low oxygen or hypoxic areas where the oxygen concentration is very low than the…
Q: The mole percent of methane to water in clathrate compounds that contain methane hydrate is 1:5.75.…
A:
Q: Would the reaction of beryllium, Be, with oxygen be more or less vigorous than ba?
A:
Q: PĄO10 is one of the most effective drying agents, having the ability to extract water from other…
A: Balanced chemical equation of a reaction is written according to law of conservation of mass.…
Q: (a) Which poisonous gas is evolved when white phosphorus is heated with Cone. NaOH solution? Write…
A:
Q: What is the valence electron configuration for Group 4A elements? Group 4A contains two of the most…
A: In the periodic table, 4A group elements are those that have 4 electrons in the valence shell.…
Q: Which one of the following is the most basic oxide? a. Bi2O3 b. N2O3 c. P4O6 d. As4O6
A: The oxides of the metals are basic in nature and the oxides of nonmetals are acidic in nature.
Q: * (b) 1. LİAIH4 (1 mol) 2. H-О NABH4, MEOH lithium aluminum hydride followed by water H2 with Pt,…
A:
Q: Of the following, AH°† is not zero for Si (s) Sc (g) O P4 (s, white) Ca (s) O Br2 (1)
A:
Q: Phosphate buffered saline (PBS) is a very common reagent in cell biology labs that do cell culture…
A: The components of 10X PBS are 10.5 mM KH2PO4, 1.552 M NaCl and 29.7mM Na2HPO4. Volume of 10X PBS…
Q: propose an explanation for the anomaly in the trend for the hydrogen compounds of group 6A elements…
A: Melting point refers to the temperature at which solid and liquid phases of a substance coexist.…
Q: Consider the reaction in the Haber process 3H2 (g) + N2 (g) → 2NH3 (g)where delta H° = -91.8 kJ/mol…
A: At a given temperature, pressure, as well as number of atoms, the Gibbs Free Energy discusses a…
When SO2 gas reacts with solid CaO, which of the following oxoanions is formed?
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
- 1. Calculate the heat evolved when 13.56g of oxygen gas (O2) is used to burn white phosphorus at standard temperature and pressure according to the equation: P4(s) + 5O2(g) → P4O10(s), ΔH = -3013 kJ/mol2. Calculate the ΔH for the reaction: B2H6(g) + 6Cl2(g) → 2BCl3(g) + 6HCl(g)The following are given:a. BCl3(g) + 3H2O(l) → H3BO3(g) + 3HCl(g) ΔH = -112.5 kJb. B2H6(g) + 6H2O(l) → 2H3BO3(g) + 6H2(g) ΔH = -493.4 kJc. 1/2H2(g) + 1/2Cl2(g) → HCl(g) ΔH = -92.3 kJIn 1995, Mario Molina, Paul Crutzen, and F. SherwoodRowland shared the Nobel Prize in chemistry for their work onatmospheric chemistry. One of several reaction sequences pro-posed for the role of chlorine in the decomposition of strato-spheric ozone is (1) Cl(g) +O3(g)→ ClO(g) +O₂(g) (2) ClO(g) +ClO(g)→ Cl₂O₂(g) (3) Cl₂O₂→ (g)2Cl(g)+ O₂(g).Over the tropics, O atoms are more common in the stratosphere:(4) ClO(g) +O(g)→ Cl(g) +O₂(g).(a) Which, if any, of these are oxidation-reduction reactions?(b) Write an overall equation combining reactions 1–3Findthemass%ofH2O2 inasolutionmadefrom36gofH2O2 and84gofH2O: A) 84% B) 36% C) 43% D) 30.% E) 70.%
- Copper(II) hydrogen arsenite (CuHAsO₃) is a green pig-ment once used in wallpaper. In damp conditions, mold metabo-lizes this compound to trimethylarsine [(CH₃)₃As], a highlytoxic gas. (a) Calculate the mass percent of As in each com-pound. (b) How much CuHAsO₃must react to reach a toxiclevel in a room that measures 12.35 mx 7.52 m x2.98 m (ar-senic is toxic at 0.50 mg/m³)?What's #2?Around 15 g of Ba(NO3)2 can be dissolved in water. Calculate from that the Ksp for Ba(NO3)2
- If 65 grams of Zn are reacted with excess HCl, approximately what volume of H2 gas will be produced at 298K and 1 bar pressure?Zn(s) + 2 HCl(aq) → H2(g) + ZnCl2(aq)Molar Mass of a Metal Data: Mass of metal ribbon: 0.045 g Mass of HCL used: 7 mL The volume of the eudiometer: 47.1 mL Temperature of water in large cylinder: 25°C The barometric pressure is: 1.002 atm What is the atomic weight of the magnesium ribbon? what is it made out of?Phosphate buffered saline (PBS) is a very common reagent in cell biology labs that do cell culture since is it osmotically stable for most eukaryotic cells. It is often prepared as 10X PBS (10.5 mM KH2PO4, 1.552 M NaCl, 29.7 mM Na2HPO4) to save on shelf space. How would you prepare 1 L of 10X PBS given 1M KH2PO4, NaCl (FW 58.44), 906mM Na2HPO4? a. What do you know about the forms of thechemicals you are given to prepare the 10X PBS and how do you know this? What should the final units for each of the 3 components be in your answer? What is the solvent for 10X PBS and how do you know this?
- (a) Why is ZnO called a amphoteric oxide? Name another amphoteric oxide(b) What are alkali’s? Give one example of alkaliExcessive nutrients dumped into waterways can create “algae blooms” that rapidly consume all of the dissolved O2 and trigger production of enough H2S to create “dead zones” like the ones that exist off the coast of Denmark and in the Gulf of Mexico immediately south of the Mississippi River delta. a. Since Group 16 element substitution is a recurring theme in that Group’s chemistry –e.g., oxygen substituting for Se and Te in the production of H2Se and H2Te, respectively –maybe molecular oxygen (O2) could be bubbled into these dead zones and react with the H2S.Write out a balanced chemical equation for the reaction between H2S and O2 to form elemental sulfur (S8) as a product that would precipitate out. b. Using bond dissociation energies, calculate if this reaction would be thermodynamically favorable. c. If your answer to part (b) is “yes”, do you think that simply bubbling O2 into these waters would work? Justify your answer.Consider the reaction in the Haber process 3H2 (g) + N2 (g) → 2NH3 (g)where delta H° = -91.8 kJ/mol and delta S° = -197 J/(mol*K). What effect does raising the temperature have on delta G°?