Write a balanced equation for the reaction of elemental boron with each of the following (most of these reactions require high temperature): (a) F2       (b) O2

Q: 1. Write the balanced equation of the reaction between Al and oxygen in the presence of heat.  2.…

A: Balanced chemical equation occurs when the number of the different atoms of elements in the…

Q: Assume that you have these materials: a) Li (s); b) Br2 (l); Ge (s) and d) Si(s). Choose the best…

A: For a good electrical conductor, material should have free electron to move.

Q: Taking into account the Jahn-Teller effect, predict the structure of [Cr(OH2)6]^2+

A:

Q: Write the equation for the reaction of:(a) Iron with steam(b) Calcium with water(c) Potassium with…

A:

Q: Which of these two oxides, SO3 and P4O10 , when reacts with water will produce stronger acid?

A: P4O10 and SO3 are acidic oxides and when they combine with water forms acids.

Q: 7. How many moles of white phosphorus (P4) fluoroapatite? can you produce from 1 ton of

A: The number of moles of a compound can be determined by the balanced chemical reaction. A reaction…

Q: Why is BiH3 the strongest reducing agent amongst all the hydrides of Group 15 elements?

A: Reducing nature is inversely related to the stability of the hydride of the element. Means on…

Q: What is the net ionic equation of the reaction of MgSO4 with Sr(NO3)2?

A: The molecular equation can be written as:

Q: What is the hydrogen deficiency of CH,0? O 1 O 2 O 3 O 4

A: Hydrogen deficiency (HD) :-  It is the index which shows how many hydrogen molecules should be added…

Q: What mass of CO2 is produced from the decomposition of 25.5 grams of NaHCO3?

A:

Q: Treatment of Cobalt (II) oxide with oxygen at high temperatures gives Co3O4. Write a balanced…

A: A balanced chemical equation is the one in which there are equal number of atoms on both the sides.…

Q: What is the oxidation number of S in the compound Na,S,O5?

A:

Q: In what oxidation state is Fe in Fe(OH)3? In FeS? How is Fe(OH)3formed?

A: a) The oxidation state of Fe in Fe(OH)3 Let the oxidation state of Fe= x The oxidation state of O=…

Q: Semiconductors made from elements in Groups 3A(13)and 5A(15) are typically prepared by direct…

A: Given: Mass of molten gallium     = 32.5 g Volume of molten gallium = 20.4 L Temperature…

Q: What is the theoretical yield of vanadium, in moles, that can be produced by the reaction of 1.0…

A: Given  Reaction  V2O5(s)  + Ca   →  V    + CaO Number of mole of V2O5  = 1 mole  Number of mole of…

Q: How many kilograms of nickel must be added to 2.43 kg of copper to yield a solidus temperature of…

A:

Q: Hydrogen fluoride is produced industrially by the action of sulphuric acid on CaF2. Suppose 308 kg…

A: 1) the percent of yield is = 73.5%. 2) the unreacted CaF2 is = 81.7 Kg.

Q: Write a balanced equation for the reaction that occurs ineach of the following cases: (a) Ozone…

A: (a) Ozone decomposes to dioxygen. The balanced equation of the given reaction is,

Q: How many Kilograms of Iron can be recovered from  1,400 kilograms of Iron ore  (  Fe2O3 )

A: By using Molar mass of Fe2O3 and Fe we can solve this problem. 979.2kg of iron can be recovered.

Q: Describe the role of the following :(i) NaCN in the extraction of silver from a silver ore(ii)…

A: Given process, (i) NaCN in the extraction of silver from a silver ore(ii) Iodine in the refining of…

Q: What is the oxidation state of tungsten in WO3?

A: In this question we have to tell the oxidation number of tungsten in WO3.

Q: How many grams of gaseous ammonia will the reaction of 3.0 g hydrogen gas and 3.0 g of nitrogen gas…

A: The limiting reagent in a chemical reaction is a reactant that is totally consumed when the chemical…

Q: What mass of CO2 produces from the decomposition of 25.5 grams of NaHCO3?

A: In all "chemical reactions," each engaged species tends to possess certain numerals called as…

Q: Nitrous oxide (N₂O), the “laughing gas” used as an anes-thetic by dentists, is made by thermal…

A: The thermal decomposition of ammonium nitrate (NH4NO3) produces Nitrogen oxide gas (N2O). The other…

Q: Calculate the electric charge (in Coulombs) required to deposit 13.5 grams of Al from Al3+ ions.

A: Given,  Mass of Al = 13.5 g  Calculate electrical charge (in Coulombs) required to deposit 13.5 g of…

Q: The lanthanide elements react with oxygen to give compounds of the type Ln2O3 (where Ln stands for a…

A: a)  Given that : % mass of Tb = 73.945 % Thus, % mass of O = 100 - 73.945 = 26.055 % Let us consider…

Q: What is the oxidation state of tungsten in WO2?

A:

Q: Complete and balance the following equations:(a) An active metal reacting with acid,Al(s)+HCl(aq)→…

A: (a) Generally metals react with acids to form hydrogen and an ionic compound where the metal is the…

Q: Deduce the chemical formula of potassium mangnate The answer is kmno4 but i ddont get it it says K=1…

A: Given  the chemical formula of potassium mangnate

Q: One of the alkali metals reacts with oxygen to form a solidwhite substance. When this substance is…

A: When sodium metal reacts with oxygen it forms Sodium peroxide. 2Na(s) + 02(g) --> Na202 (s)

Q: Write a balanced equation to show: The formation of gas bubbles when cobalt reacts with hydrochloric…

A: A balanced equation is that chemical equation\reaction in which the number of atoms of each element…

Q: boron hydrides were once evaluated for possible use as rocket fuels. Complete and balance the…

A: The combustion reaction given is  B2H6 (g) + O2 (g) ----> B(OH)3 (l)

Q: Name the following compounds and assign oxidation states to the halogens in them: (a) KClO3

A: The given compound is KClO3 To find: Name of the given compound Oxidation state of the halogen

Q: Would the reaction of cesium, Cs, with oxygen be more or less vigorous than K?

A: We are given two elements K and Cs

Q: Explain how the diphosphate ion, [O3P−O−PO3]4−, can function as a water softener that prevents the…

A: The reason of diphosphate ion as a water softener has to be given,

Q: Aluminum is produced commercially by the electrolysis of Al2 O3 in the presence of a molten salt. If…

A: Given:: Mass of Al = ? molar mass of Al = 27 g mol-1 Current = 0.740 million A= 0.740×106 A Time (t)…

Q: Write the chemical formula for each of the following compounds, and indicate the oxidation state of…

A: The formula and oxidation state of halogen for hydroiodic acid has to be given. The given compound…

Q: Why K2O is diamagnetic in nature?

A: K2O form superoxide ion O2- in which there is an unpaired electron present in anti-bonding orbital.

Q: How many grams of bromine are required to react completely with 22.1g of titanium?

A: Balanced chemical equation: Ti  +  2Br2  ------>  TiBr4 So, Number of moles of Br2 = 2 x number…

Q: Name the following compounds and assign oxidation states to the halogens in them XeF6

A:

Q: What mass, in grams, of hydrogen gas forms during the complete reaction of 10.01 g of calcium with…

A: Given: Molar mass of Ca=40.078 g/ mol. Given mass of Ca=10.01 g

Q: 3. Write and balance the chemical equation for the oxidation of I ion in aqueous solution by…

A: Here balance the equation by oxidation and reduction reaction.

Q: Treatment of Cobalt (ll) Oxide with oxygen at high temperatures gives Co3O4. Write a balanced…

A: Balanced chemical equation is the one which has equal number of atoms on both sides of the equation…

Q: Give the balanced chemical equations for the reactions of Group IV cations with (NH4)2HPO4.

A: Group IV cations are Ca2+ , Ba2+ and Sr2+ , these cations easily precipitated out by adding…