Elemental phosphorus is used in the semiconductor industry. It can be obtained from an ore called fluoroapatite via reaction with SiO2 and C: 4 Cas (PO4)3 F + 18 SiO2 + 30 C --› 3 PA + 30 CO + 18 CaSiO3+ 2 CaF2 Suppose a particular semiconductor production plant requires 1300 kg of P4. If the recovery of P4 from this reaction is 78% efficient, what mass of fluoroapatite is needed?

Q: Silicon carbide, SiC, is used as an abrasive for many industrial processes. If you want to produce…

A: Given-> Weight of SiC = 1.00 kg = 1000 gm (1 kg= 1000g)

Q: Consider the balanced reaction of magnesium and oxygen.   2Mg+O2⟶2MgO2Mg+OX2⟶2MgO   What mass, in…

A: The balanced reaction taking place is given as, => 2 Mg + O2 → 2 MgO Given: Mass of Mg taken =…

Q: 2K + 2H,0 --> 2KOH + H, Describe what is happening Reactants combine into a large one Reactant…

A:

Q: Barium metel was quantitatively precipitaded from 1.52g sample of BaCl2+2H2O. The mass of the barium…

A: Mass percentage = (mass of solute / mass of solution) x 100%

Q: Cu + AgNO3 → Cu(NO3)2 + Ag, balanced or not balanced?

A: In balanced equation the number of mole of each atom or molecules at left side must be equal to…

Q: Balance the following chemical equation (if necessary): SiO₂ (s) + C(s)→→ Si(s) + CO(g)

A:

Q: Select the best possible products for the given reaction. Don't worry about balancing. NO₂-

A: Given : formula of compound. And periodic table.  This ia a dissociation reaction.

Q: The density of solid Cr is 7.15 g/cm3. How many atoms are present per cubic centemeter of Cr?

A: Mass = Volume x density Number of moles = Mass/molar mass Number of molecules = 6.0224 x 1023 x…

Q: What mass, in grams, of MgO can be produced

A: Number of moles = mass/molar mass  First we find out the limiting reactant and then after applying…

Q: A sample of nickel silver contains 18.0% nickel by mass. What mass of nickel silver must be melted…

A: Given: Sample of Nickel Silver contains: 18% Nickel by mass.

Q: Madagascar is one of the most important gem-producing countries. three tonnes of Madagascar rock…

A: In order to solve this question, we will be using basic mole concepts. Also, since you have asked…

Q: chlorine

A: according to the chemical reaction equation,  4moles of Cl2 react with = 1mol of CS2  1mol of Cl2…

Q: Name the chief ores of aluminium and zinc.

A:

Q: Consider the balanced reaction of magnesium and oxygen.   2Mg+O2⟶2MgO2Mg+O2⟶2MgO What mass, in…

A: Number of moles of Mg and O2 are calculated as follows: No. of moles of Mg=massmolar mass=1.41…

Q: Iodine is made by the following reaction 2 NaIO3(aq) + 5 NaHSO3(aq) → 3 NaHSO4 (aq) + 2 Na2SO4 (aq)…

A: Given , Reaction : 2NaIO3(aq) +5 NaHSO3(aq) → 3NaHSO4(aq) + 2Na2SO4(aq) +H2O(I) +I2(aq)

Q: The following reaction is known as the Haber Process. It is commonly used to make ammonia (NH3) for…

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Q: Fill in the blanks.

A: The balanced chemical equation for this reaction is: NH3 + Br2 + H2O → NH4Br + HOBrNH3 is…

Q: Ca: (PO,), (s) + Si0,(s) + C (s) → , (s) + CO(g) Ca SiO, (s) + P + co(g) 3 2

A: Balanced chemical equation is given as follows

Q: Given the following reaction: 2 Al + 2 KOH + 4 H2SO4 + 22 H20 --> 3 H2 + 2KAI(SO)2•12H20 If you…

A: Aluminium in presence of KOH and sulfuric acid produces an alum.  Here Al is the limiting reagent…

Q: Bricks are used in construction. They are O ceramic materials alloys O composites O polymeric solids

A: Answer is ceramic material.

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

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Q: If you began with 24 moles of Fe203, approximately how many moles of pure iron would be formed as a…

A: Given :-  2 Fe2O3 + 3 C ----> 4 Fe + 3 CO2  Number of moles of Fe2O3 = 24 mol  To calculate :-…

Q: Consider the balanced reaction of magnesium and oxygen.   2Mg+O2⟶2MgO2Mg+OX2⟶2MgO   What mass, in…

A: Mass of Mg = 1.92 g Mass of O2 = 2.66 g Mass of MgO = ?

Q: 45. Iron + Water → Iron III oxide + Hydrogen 46. Sodium hydroxide + Chlorine > Sodium chloride +…

A:

Q: What is the correct chemical equation for the double replacement reaction of iron (III) chloride…

A: Iron (III) chloride reacts with calcium hydroxide to form iron (III) hydroxide and calcium chloride.…

Q: D4), and siderite (FECO3)

A: Mass of  element in compound= mass of element×100÷mass of compund Fe3O4 have higest quantity of Fe…

Q: 2 V2O5  +  5 Si →  4 V +  5 SiO2 Given the above balanced equation, calculate the number of grams…

A: Given , Mass of V metal = 476 g

Q: Express your answer as a chemical formula. View Available Hint(s)

A: To solve this problem, we have to write the molecular formula of a given 3D-model of a compound.

Q: Nitrogen gas can be prepared by passing gaseous ammonia over solid copper (II) oxide at high…

A: At high temperature, when gaseous ammonia passed over copper (II) oxide produces nitrogen gas and…

Q: Measurements of the exhaust gases of a hydrogen-fueled engine indicate a composition of 71.0% N2,…

A:

Q: d) For the reaction of hydrocarbons in oxygen, C5H12(1) + O2(g) → CO2(g) + H₂O(g) CH3OCH3(g) + O2(g)…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: he net chemical equation fc

A:

Q: Given the following balanced chemical equation: 2Fe 2 O 3 +3C 4Fe+3CO 2 If you began with 24 moles…

A: In a balanced chemical equation, the number of moles of reactant and product depends on the…

Q: This is the thermite reaction which produces an incredible amount of heat as it occurs: Fe₂O3 + 2 Al…

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Q: Chemical equation involved: Hydrogen Peroxide + Potassium lodide + > Write the correct chemical…

A:

Q: One of the reactions involved in obtaining pure copper (Cu) from copper-containing rock is Cu2S + O2…

A:

Q: a) Please calculate the theoretical lead mass can be obtained from 10 t lead concentrate containing…

A: To calculate the theoretical lead mass in 10 t lead concentrate  To calculate the theoretical…

Q: 1.What mass of Cu(IO3)2 can be formed from 0.650 g of CuSO4 · 5H2O? 2. What mass of KIO3 is needed…

A:

Q: If 4.95 g of A reacts to produce 8.95 g of C, what is the mass of B? Express your answer with the…

A: For the reaction: 3A+B→2C No molar mass of any species is provided. So, according to the law of…

Q: 7. If you want to produce 100.0 g of aluminum, how many grams of aluminum oxide should you start…

A: 2Al2O3 + 3C ----> 4Al + 3CO2mass of aluminium (Al) produced = 100.0 gmass of aluminium oxide…

Q: Hydrochloric acid (HCl) was added to potassium iodate crystals (KIO₃) which had previously been…

A: Here Aluminium also takes part in the reaction.  This is an oxidation- reduction reaction Here KIO3…

Q: A student is given a 1.3308 g of an unknown copper compound. Following isolation by displacement by…

A: Given,      Mass of the unknown Copper Compound =1.3308 g      Mass of Copper (Cu) Metal recovered…

Q: If the magnesium strip weighed 0.51 g, what would the theoretical yield (in grams) of H2 gas be?…

A: Given :- mass of Mg strip = 0.51 g  To calculate :- theoretical yield of H2 gas (in grams)

Q: Given the chemical reaction 5 (s) + 6 02 (g) → 3 SO2 (g) + 2 SO3 (g) Which of the following flux…

A: The possible flux relationships in accord with the given reaction are shown below.…