The most abundant elements in the universe today *

Q: Write a balanced chemical equation based on the following description: aqueous potassium phosphate…

A: In this chemical reaction, the aqueous solution of potassium phosphate (K3PO4) combines with the…

Q: A student is given a 1.8686 g of an unknown copper compound. Following isolation by displacement by…

A: Given: Mass of Cu = 0.3685 g Mass of compound = 1.8686 g

Q: A sample of an iron alloy contains 90.2 g Fe, 2.15 g C, and 1.01 g Cr. Calculate the percent by mass…

A: Total mass of the alloy = mass of Fe + mass of C + mass of Cr = 90.2 + 2.15 + 1.01 = 93.36 g

Q: A sample of salt water was collected weighing 112.09 grams.  After boiling for several minutes until…

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Q: Predicting Products of Chemical Reactions

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to…

Q: Chemical formula for Iron (III) Hydrogen Phosphate

A: Chemical formulas are used to represent a chemical compound. They involved symbols of atoms from…

Q: From a 2.686 g sample containing only iron, sand, and salt, 0.753 g of iron and 1.377 g of sand were…

A: Given : Total mass of sample of salt and iron and sand = 2.686 g Mass of iron = 0.753 g And mass of…

Q: Which of the following compounds could be used as reactants to prepare copper(II) carbonate? O…

A: Explanation to the correct answer is given below.

Q: 1. Metals react ith oxygen gas to produce oxides with the general formula Mx O y. Write a balanced…

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Q: A 19.90 gram sample of iron is heated in the presence of excess iodine. A metal iodide is formed…

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Q: Barium metal was quantitatively precipitated from a 1.52 g sample of BaCl2-2H2O. The mass of the…

A: Given: Mass of the sample BaCl2.2H2O =1.52g Mass of Barium collected = 0.844g

Q: Which of the following metals is least chemically reactive?  potassium  sodium  iron  magnesium…

A: The reactivity of s block metals are very high due to presence of just either 1 or 2 electrons in…

Q: Write the balanced equation for aqueous Copper(II) nitrate reacting with aqueous potassium iodide…

A: For a chemical reaction to be balanced, the number of atom each element or compound should be same…

Q: A. Br HBr (excess) پنی من من بنے Br B. Br Br Br Br + Br Br D. Br Br

A: Addition reaction of HBr to an alkyne

Q: Write a complete, balanced equation for this reaction. Include the physical state of each substance.…

A: There should be equal numbers of every atom on both side of the equation.

Q: When lead (ii) nitrate and sodium sulfide are mixed a black solid precipitate is formed. What is the…

A: Consider the reaction of lead (ii) nitrate and sodium sulfide are mixed a black solid precipitate is…

Q: Q1 Complete the following table: [OH¯] pH [H,O*] Acidic, Basic, or Neutral? 2.0x10-6 9.8 3.5x10-3…

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Q: Suppose that a device is using a 10.0-mg sample of silicon that is doped with 1 x 10-5% (by mass)…

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Q: When sulfuric acid and copper (II) oxide are allowed to react, copper (II) sulfate and water are…

A: The reactants give are, 1) Copper (II) Oxide i.e CuO  2) Sulfuric acid i.e H2SO4  And the products…

Q: Li(s)+N2(g)→Li3N(s) Balance the equation.

A: The balance equation is

Q: Aluminum and iodine are both ground into a fine powder and combined in a heatproof dish where a…

A: Aluminum + iodine gives Al2I6 Al + I2 --> Al2I6 In next step we will balance this reaction.

Q: A sample of stainless steel contains 10.5% chromium by mass. What mass of chromium, in grams, is…

A: Given information,             Stainless steel sample contains 10.5% chromium by mass.…

Q: Balance the chemical equations   Rb(s)+H2O(l)→RbOH(aq)+H2(g) NiS(s)+O2(g)→NiO(s)+SO2(g)…

A: Balanced chemical equation of a reaction is written according to law of conservation of mass.…

Q: Supply the name of the reagent that could be used to form 3-Bromocyclohexene by the reaction shown…

A: Given: A) Cyclohexene -----> 3-Bromocyclohex-1-ene

Q: A student is given a 1.3002 g of an unknown copper compound. Following isolation by displacement by…

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Q: Write a balanced chemical equation for each of the statements given below. Also show the phase of…

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Q: what is the formula for the element.  Mn(CO 3 ) 2 (aq)

A: The given compound is Mn(CO 3 ) 2 (aq) .Here we have to write the formula of Mn.

Q: When sulfuric acid and copper (II) oxide are allowed to react, copper(II) sulfate and water are…

A: When sulphuric acid and copper (II) oxide are allowed to react, copper(II) sulfate and water are…

Q: When each formula unit of potassium carbonate, K,CO, dissociates into ions in solution, there is…

A: Given compound K2CO3, to predict its decomposition in aqueous solution.

Q: A sample of soda-lime glass for tableware is analyzed and found to contain the following percentages…

A: Given- % by mass of oxides SiO2 = 72.4% Na2O =18.1% CaO = 8.1% Al2O3 =1.0% MgO = 0.2% BaO = 0.2%…

Q: g of magnesium nitrate is dissolved in 1.20 L of water. 25 mL of this solution is taken and diluted…

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Q: 25. XF2 is the chemical formula of a salt. The X-ion in this salt has 26 electrons. The metal X is…

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Q: One way to analyze for the amount of phosphorus in a rock is to precipitate the phosphorus as…

A: Given the mass of the rock sample = 2.832 g Percent of Ca3(PO4)2 = 86.52% => mass of Ca3(PO4)2 in…

Q: Copper metal heated with sulfur produces solid copper(ii) sulfide. Write the balanced equation and…

A: The reactants given are copper metal and sulfur to produce copper (II) sulfide.

Q: A three-step process for producing molten iron metal from Fe203 is: 1. 3FE203 + CO –→ 2FE304 + CO2…

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Q: A piece of solid iron sinks in a container of molten iron. A piece of solid aluminum sinks in a…

A: Since the density of solid is more than density of liquid and gaseous state. solid state is most…

Q: mass of sample moles of sample molecules in sample atoms in sample 4.07 g C6H6 4.00.0522 mol…

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