7. Write balanced equations for each of the following by inserting the correct coefficient in the blanks. OsH + Os HOsM+ H ZrO2(s) + HF() →_ ZrF4(s) + a. b. Na20(s) + H2O(1) → _ NaOH(aq) + O2(g) -> Al2O3(s) + NaOH(aq) – NasAIO3(aq) + H2O(1) C.

Q: How many moles of Zn would be required to produce 4 moles of hydrogen gas using the following…

A: Given : number of moles of H2 = 4 mol  Zn and H2 are present in ratio 1:2

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A: Welcome to bartleby !

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A: The reaction above can be correctly written as below: 4Ca5(PO4)3 F + 18SiO2 + 30C ----->  3 P4 +…

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Q: MCQ 158: Sand and rocks further added to cement becomes A. concrete B. steel C. iron D. nickel

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A: Mass of mixture (CaCO3 + SrCO3) = 1 g  Mass of residue (CaO + SrO) = 0.6 g  % of CaCO3 = ?

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Q: The solubility of BaSO4 in water is 2.33×10−3 gm/litre. Its solubility product will be (molecular…

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Q: What element Is oxidized in the followlng chemical reaction? NIO2 + Cd + 2H20 NI(OH)2+ Cd(OH)2

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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…

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Q: Balance the equation for the synthesis of cryolite. equation:…

A: The balanced chemical equation for the synthesis of cryolite is given as follows:

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Q: STAEDTLER Mars plastic s) Use the following unbalanced chemical reaction to answer the questions…

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Q: Solid gold (III) oxide undergoes a thermal decomposition reaction to form gold metal and oxygen gas.…

A: the decomposition of gold oxide to break into product take place in presence of heat

Q: (b) Hydrazine (N½H4) is used for rocket fuel. Calculate the percentage atom' economy for hydrazine…

A: % of Atom economy  = ( Mass of product / mass of all reactants ) × 100

Q: What hydrocarbon is needed to complete and balance the following reaction? spark 5 O2 3 CO2 4 H20 A…

A: Since you have posted 2 completely unrelated questions, we are entitled to answer the first only.

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Q: basic solution, molecular chlorine, Cl 2 , reacts with hydroxide ions, OH −

A: Cl2+OH-  ⇌ ClO3 - + Cl- +H20 Self oxidation -reduction reaction

Q: The formula for zinc phosphate is Zn:(PO.):. What is the formula for cadmium arsenate? * Cd:(AsO.):…

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Q: A 2.05 g sample of an unknown compound contains H, S, and O. If the compound contains 0.050 gH and…

A: 3rd option is correct that is 58.5%

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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 ×…

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Q: Complete and balance the following chemical equation: Ni (s) + H2SO4 (ap) -->

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Q: - Which of the following is false regarding the reaction of 130.8 g of Zn with a sufficient amount…

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Q: A solution was prepared by dissolving 0.000245 Kg of Na2SO4 in water to give 500 ml. Calculate the…

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Q: g. Aluminium in 1.200 g sample of impure ammonium aluminium sulphate was precipitated with aqueous…

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