(a) When the metallic element sodium combines with thenonmetallic element bromine, Br21l2, what is the chemicalformula of the product? (b) Is the product a solid, liquid, orgas at room temperature? (c) In the balanced chemical equationfor this reaction, what is the coefficient in front of theproduct if the coefficient in front of Br21l2 is 1?

Q: Carbon dioxide is removed from the atmosphere of spacecapsules by reaction with a solid metal…

A: a) The balanced reaction of LiOH with CO2 is as follows: Molar mass of LiOH is 23.95 g/mol Molar…

Q: The reaction of lithium with sulfur is similar to that of sodium with sulfur. Write the balanced…

A: Write the balanced chemical equation for the reaction of lithium with sulfur. Include phase symbols.

Q: How many grams of hydrogen H2 are produced by the reaction of 33 grams of magnesium Mg?

A: m H2 = ? m = 33 g Mg Mg + 2HCl --> H2 + MgCl2 MW H2 = 2 g/gmol MW Mg = 24.3 g/gmol MW MgCl2 =…

Q: Assuming an unlimited amount of phosphorous (P4), how many grams of Mg are needed in order to…

A: Given, Magnesium is reacting with P4. How many grams of Mg is required to produce 1200.0g of Mg3P2 ?

Q: 5) compare your calculated AH value with a published value.

A: Given, Experimental △H for MgO = – 598 kJ/mol   (as calculated in question 4)   The standard…

Q: What substances are present, and what are their masses, after the reaction of 10.00 g ofmagnesium…

A: THE IDEA HERE IS THAT CHEMICAL REACTIONS MUST OBEY THE LAW OF MASS CONSERVATION , WHICH STATES THAT…

Q: What is the mass percentage of Cl in hydrochlorothiazide, C₇H₈ClN₃O₄S₂?

A:

Q: Which fluorinating agent are oftenly used instead of F2? Write two chemicalequations showing their…

A: Fluorinating agents:          An active species which contains fluorine atom as their either an…

Q: What will happen to calcium phosphate Ca3 (PO4) 2 when heated from 60 ° C to 100 ° C?

A: The solubility product of Ca3(PO4)2 is 2.0 X 10-29

Q: Oxygen (8O) and argon (18A) are both gases. Oxygen combines readily with other elements, but argon…

A: Oxygen combines easily with other elements. But argon does not.

Q: Acetylene gas, C2H21g2, is used in welding. (a) Write a balanced equation for the combustion of…

A: The unbalanced chemical equation for the reaction of acetylene with air is shown in equation (1).

Q: 1 B,0, + 3 Mg → 3M9O + 2 B 5. (a) How many grams of boron can be obtained from 10.00g of B,0,? (b)…

A: Given balanced equation is as follows. 1B2O3+3Mg→3MgO+2B

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical…

A: Chloric acid :  HClO3 Barium Hydroxide : Ba(OH)2 Water : H2O   Barium Chlorate  : Ba(ClO3)2

Q: A4 Each alkali metal reacts with water to give hydrogen gas and an hydroxide (a base). eg: lithium +…

A:

Q: What is Manganese ?

A: The arrangement of elements in increasing order of atomic number in the tabular form is termed…

Q: complete and balance the following equations

A: To solve this problem we have to balance the given equation then complete and net ionic equation…

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of…

A: All atoms of all elements and charges should be balanced in a balanced chemical reaction.

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of…

A: The two reaction is as follows: First reaction: CaC2(s) + 2H2O(g) →C2H2(g) + Ca(OH)2(s) Second…

Q: A sample of cesium metal reacted completely with water, evolving 2.028 mmol of dry H 2 at 19 degrees…

A:

Q: How many grams of iron, molar mass 55.85 g/mol, will be consumed during the formation of 12.51 grams…

A: given :- mass of Fe2O3 = 12.51 g  molar mass of Fe = 55.85 g/mol  To calculate :-  mass of Fe

Q: A 0. 4054 g solid organic sample containing covalently bound bromide and no other halogens was…

A: Given,  Mass of sample = 0.4054 g = 0.4054g × 1000 mg/ 1g = 405.4 mg Mass of silver bromide produced…

Q: Complete and balance the following OUTLINED reactions by supplying the products. он + Na* OH (aq) Ka…

A:

Q: Fe2S3 -----> 2Fe + 3S What mass of sulfur (S) is produced from the thermal decomposition of 12.5g…

A: Molar Mass of Fe2S3 = 207.9 g Molar Mass of Sulphur = 32.065 g

Q: You started your preparation of common alum with 1.4971 g of aluminum foil. What is the theoretical…

A: Formula of alum is KAl(SO4).12 H2O Molar mass is 474.38 g/mol We have to calculate theoritical…

Q: Aluminum is produced commercially by the electrolysis of Al,0, in the presence of a molten salt. If…

A: Given,  Amount of current in million A = t = 0.670 million A  Time in hour = t = 2.50 h  Mass of Al…

Q: Balance the following reaction by filling in the blank with a single product. Treat subscripts and…

A: The reaction depicting number of atoms which are engaged in reactant side is completely identical…

Q: what is a balanced equation for the reaction of nonane,C9H20 , with oxygen O2?

A: The reaction of nonane with oxygen is a combustion reaction.  In combustion reaction, a hydrocarbon…

Q: Find the heat energy evolved is slaking 1.0 Kg of quicklime [ CaO] according to the reaction given…

A: Formula for heat energy: Q = mC∆T where m= mass , C= specific heat capacity ,∆T = (final temperature…

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical…

A: Balancing of chemical reaction- It consists of reactant (starting material) and products…

Q: Calculate ΔE in kilojoules per mole for the following reaction:               Th → He + Ra Atomic…

A: The following formula will be applicable to solve for the answer. ∆E=∆m×c2 where, '∆E' is the change…

Q: If you mass 0.430 g of Co(NO3)2-6H2O and dissolve it in water, what further information would you…

A: Solution-  (a). we know that  No. of moles = given massmolar mass we need to molar mass of the…

Q: 2n°: How many grams of Lithium phosphate are needed to produce 1.5 kg of Lithium sulfate?

A:

Q: What is the mass percentage of C in caffeine, C₈H₁₀N₄O₂?

A: The concentration of an element in a compound or mixture is represented using mass percent. The mass…

Q: How many tons of Ca3(PO4)2 are necessary to prepare 5.0 tons of phosphorus if the yield is 90%?

A: The reaction can be given as follows: 2Ca3(PO4)2+6SiO2+10C(s)→6CaSiO3+10CO+P4 The given percent…

Q: Reaction of propylene, C3H6 with nitrogen monoxide produces acrylonitrile, C3H3N , water and…

A: A balanced chemical equation contains equal number of atoms on both the reactant and product side.…

Q: If 5.36 moles of Aluminum react sufficient oxygen, how many moles of Al2O3  should form?

A: moles of Al2O3  should form, If 5.36 moles of Aluminum react sufficient oxygen will be:

Q: It is estimated that the total amount of oxygen (O2) contained in BIFS is equivalent to 6.6% of the…

A: Amount of oxygen present in atmosphere of BIFs = 6.6% of 21% of  5.01× 1018 Kg.    = 6.6100× 21100 ×…

Q: what is the mass percentage of C in hydrochlorothiazide, C7H8ClN3O4S2?

A: Mass percentage=Mass of particular speciesTotal massx100Hydrochlorothiazide molecular…

Q: Explain how measuring carbon isotope (12C, 13C,14C) abundance in atmospheric CO2 provides evidence…

A: Carbon occurs predominately in three isotopic forms, C-12, C-13 and C-14. Out of these, C-12 is the…

Q: Write the chemical equation for the word equation below. Each blank should be a different substance…

A: We have to react molybdenum(IV) chromate with lithium telluride to form molybdenum(IV) telluride and…

Q: Carbon disulfide is produced by reacting carbon with sulfur dioxide according to the equation: 5C+2…

A: The objective of the question is to choose the statement which best follows the reaction given in…

Q: If 5.3 g of gallium reacts with 5.3 g of oxygen to produce gallium oxide, what will we be left with…

A: Limiting reactant :-  A reactant whose number of moles are less than the number of moles  required…

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical…

A:

Q: (ii) Explain why, in the synthesis of nitric acid, the reaction of nitrogen monoxide with dioxygen…

A: Due to the following reason Nitric acid is prepared at high pressure and low temperature.

Q: What is the molar mass of ginkgolide B (C 20H 24O 10), a complex compound isolated from the ginkgo…

A: Molar mass of a chemical compound is equal to the mass of one mole of chemical compound. Unit of…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.